1532012240 has 80 divisors (see below), whose sum is σ = 3935105280. Its totient is φ = 550018560.

The previous prime is 1532012201. The next prime is 1532012249. The reversal of 1532012240 is 422102351.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1532012249) 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, 58502 + ... + 80538.

It is an arithmetic number, because the mean of its divisors is an integer number (49188816).

Almost surely, 2^1532012240 is an apocalyptic number.

1532012240 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 1532012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1967552640).

1532012240 is an abundant number, since it is smaller than the sum of its proper divisors (2403093040).

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

1532012240 is a wasteful number, since it uses less digits than its factorization.

1532012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22140 (or 22134 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1532012240 is about 39140.9279399454. The cubic root of 1532012240 is about 1152.8002934772.

Adding to 1532012240 its reverse (422102351), we get a palindrome (1954114591).

The spelling of 1532012240 in words is "one billion, five hundred thirty-two million, twelve thousand, two hundred forty".