15240462990 has 64 divisors (see below), whose sum is σ = 37431936000. Its totient is φ = 3969498240.

The previous prime is 15240462977. The next prime is 15240462997. The reversal of 15240462990 is 9926404251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15240462997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692760 + ... + 714420.

It is an arithmetic number, because the mean of its divisors is an integer number (584874000).

Almost surely, 2^15240462990 is an apocalyptic number.

15240462990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15240462990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18715968000).

15240462990 is an abundant number, since it is smaller than the sum of its proper divisors (22191473010).

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

15240462990 is a wasteful number, since it uses less digits than its factorization.

15240462990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22217.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 15240462990 in words is "fifteen billion, two hundred forty million, four hundred sixty-two thousand, nine hundred ninety".