15898122240 has 1152 divisors, whose sum is σ = 70270986240. Its totient is φ = 2984509440.

The previous prime is 15898122151. The next prime is 15898122257. The reversal of 15898122240 is 4222189851.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 15898122192 and 15898122201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 338257897 + ... + 338257943.

It is an arithmetic number, because the mean of its divisors is an integer number (60999120).

Almost surely, 2^15898122240 is an apocalyptic number.

15898122240 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 15898122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35135493120).

15898122240 is an abundant number, since it is smaller than the sum of its proper divisors (54372864000).

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

15898122240 is a wasteful number, since it uses less digits than its factorization.

15898122240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 15898122240 in words is "fifteen billion, eight hundred ninety-eight million, one hundred twenty-two thousand, two hundred forty".