15229257340 has 48 divisors (see below), whose sum is σ = 36725109120. Its totient is φ = 5246441280.

The previous prime is 15229257331. The next prime is 15229257343. The reversal of 15229257340 is 4375292251.

It is a junction number, because it is equal to n+sod(n) for n = 15229257293 and 15229257302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15229257343) 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, 1817502 + ... + 1825861.

It is an arithmetic number, because the mean of its divisors is an integer number (765106440).

Almost surely, 2^15229257340 is an apocalyptic number.

15229257340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15229257340 is an abundant number, since it is smaller than the sum of its proper divisors (21495851780).

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

15229257340 is a wasteful number, since it uses less digits than its factorization.

15229257340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643402 (or 3643400 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 15229257340 in words is "fifteen billion, two hundred twenty-nine million, two hundred fifty-seven thousand, three hundred forty".