115428450 has 48 divisors (see below), whose sum is σ = 288079776. Its totient is φ = 30585600.

The previous prime is 115428449. The next prime is 115428457. The reversal of 115428450 is 54824511.

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

It is not an unprimeable number, because it can be changed into a prime (115428457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22090 + ... + 26810.

It is an arithmetic number, because the mean of its divisors is an integer number (6001662).

Almost surely, 2^115428450 is an apocalyptic number.

115428450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115428450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144039888).

115428450 is an abundant number, since it is smaller than the sum of its proper divisors (172651326).

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

115428450 is a wasteful number, since it uses less digits than its factorization.

115428450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 115428450 is about 10743.7633071471. The cubic root of 115428450 is about 486.8975859369.

The spelling of 115428450 in words is "one hundred fifteen million, four hundred twenty-eight thousand, four hundred fifty".