1652501240 has 128 divisors (see below), whose sum is σ = 4203239040. Its totient is φ = 580141056.

The previous prime is 1652501237. The next prime is 1652501251. The reversal of 1652501240 is 421052561.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2786384 + ... + 2786976.

It is an arithmetic number, because the mean of its divisors is an integer number (32837805).

Almost surely, 2^1652501240 is an apocalyptic number.

1652501240 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 1652501240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101619520).

1652501240 is an abundant number, since it is smaller than the sum of its proper divisors (2550737800).

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

1652501240 is a wasteful number, since it uses less digits than its factorization.

1652501240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1652501240 is about 40650.9685001477. The cubic root of 1652501240 is about 1182.2625459050.

The spelling of 1652501240 in words is "one billion, six hundred fifty-two million, five hundred one thousand, two hundred forty".