15234021492 has 12 divisors (see below), whose sum is σ = 35546050176. Its totient is φ = 5078007160.

The previous prime is 15234021461. The next prime is 15234021497. The reversal of 15234021492 is 29412043251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15234021497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634750884 + ... + 634750907.

It is an arithmetic number, because the mean of its divisors is an integer number (2962170848).

Almost surely, 2^15234021492 is an apocalyptic number.

15234021492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15234021492 is an abundant number, since it is smaller than the sum of its proper divisors (20312028684).

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

15234021492 is a wasteful number, since it uses less digits than its factorization.

15234021492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269501798 (or 1269501796 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 15234021492 in words is "fifteen billion, two hundred thirty-four million, twenty-one thousand, four hundred ninety-two".