115656420 has 192 divisors, whose sum is σ = 389007360. Its totient is φ = 25344000.

The previous prime is 115656391. The next prime is 115656467. The reversal of 115656420 is 24656511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 288220 + ... + 288620.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 2^115656420 is an apocalyptic number.

115656420 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 115656420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194503680).

115656420 is an abundant number, since it is smaller than the sum of its proper divisors (273350940).

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

115656420 is a wasteful number, since it uses less digits than its factorization.

115656420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 115656420 is about 10754.3674848872. The cubic root of 115656420 is about 487.2179143868.

Subtracting from 115656420 its reverse (24656511), we obtain a palindrome (90999909).

The spelling of 115656420 in words is "one hundred fifteen million, six hundred fifty-six thousand, four hundred twenty".