115204420 has 24 divisors (see below), whose sum is σ = 242487000. Its totient is φ = 45975552.

The previous prime is 115204409. The next prime is 115204433. The reversal of 115204420 is 24402511.

It can be written as a sum of positive squares in 4 ways, for example, as 29419776 + 85784644 = 5424^2 + 9262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 15394.

It is an arithmetic number, because the mean of its divisors is an integer number (10103625).

Almost surely, 2^115204420 is an apocalyptic number.

115204420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115204420 is an abundant number, since it is smaller than the sum of its proper divisors (127282580).

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

115204420 is a wasteful number, since it uses less digits than its factorization.

115204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287 (or 13285 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 115204420 is about 10733.3321946169. The cubic root of 115204420 is about 486.5823825600.

Adding to 115204420 its reverse (24402511), we get a palindrome (139606931).

The spelling of 115204420 in words is "one hundred fifteen million, two hundred four thousand, four hundred twenty".