15400240352 has 24 divisors (see below), whose sum is σ = 34650541296. Its totient is φ = 6600102912.

The previous prime is 15400240343. The next prime is 15400240367. The reversal of 15400240352 is 25304200451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34375313 + ... + 34375760.

It is an arithmetic number, because the mean of its divisors is an integer number (1443772554).

Almost surely, 2^15400240352 is an apocalyptic number.

It is an amenable number.

15400240352 is an abundant number, since it is smaller than the sum of its proper divisors (19250300944).

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

15400240352 is an equidigital number, since it uses as much as digits as its factorization.

15400240352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68751090 (or 68751082 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 15400240352 in words is "fifteen billion, four hundred million, two hundred forty thousand, three hundred fifty-two".