115428420 has 72 divisors (see below), whose sum is σ = 368571840. Its totient is φ = 29160000.

The previous prime is 115428413. The next prime is 115428431. The reversal of 115428420 is 24824511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13456 + ... + 20295.

Almost surely, 2^115428420 is an apocalyptic number.

115428420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115428420 is an abundant number, since it is smaller than the sum of its proper divisors (253143420).

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

115428420 is a wasteful number, since it uses less digits than its factorization.

115428420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33785 (or 33780 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 115428420 is about 10743.7619109882. The cubic root of 115428420 is about 486.8975437551.

The spelling of 115428420 in words is "one hundred fifteen million, four hundred twenty-eight thousand, four hundred twenty".