1952660240 has 80 divisors (see below), whose sum is σ = 4705413120. Its totient is φ = 752801280.

The previous prime is 1952660231. The next prime is 1952660249. The reversal of 1952660240 is 420662591.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1952660231) and next prime (1952660249).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1952660240.

It is not an unprimeable number, because it can be changed into a prime (1952660249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665657 + ... + 668583.

It is an arithmetic number, because the mean of its divisors is an integer number (58817664).

Almost surely, 2^1952660240 is an apocalyptic number.

1952660240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1952660240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352706560).

1952660240 is an abundant number, since it is smaller than the sum of its proper divisors (2752752880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1952660240 is a wasteful number, since it uses less digits than its factorization.

1952660240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240 (or 3234 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1952660240 is about 44188.9153521559. The cubic root of 1952660240 is about 1249.9008433346.

The spelling of 1952660240 in words is "one billion, nine hundred fifty-two million, six hundred sixty thousand, two hundred forty".