15152421240 has 192 divisors, whose sum is σ = 53881925760. Its totient is φ = 3662396160.

The previous prime is 15152421239. The next prime is 15152421259. The reversal of 15152421240 is 4212425151.

It is a happy number.

15152421240 is a `hidden beast` number, since 1 + 515 + 24 + 2 + 124 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1368607 + ... + 1379633.

It is an arithmetic number, because the mean of its divisors is an integer number (280635030).

Almost surely, 2^15152421240 is an apocalyptic number.

15152421240 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 15152421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26940962880).

15152421240 is an abundant number, since it is smaller than the sum of its proper divisors (38729504520).

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

15152421240 is a wasteful number, since it uses less digits than its factorization.

15152421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11402 (or 11395 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 15152421240 its reverse (4212425151), we get a palindrome (19364846391).

The spelling of 15152421240 in words is "fifteen billion, one hundred fifty-two million, four hundred twenty-one thousand, two hundred forty".