115207428 has 36 divisors (see below), whose sum is σ = 312707472. Its totient is φ = 32916240.

The previous prime is 115207427. The next prime is 115207429. The reversal of 115207428 is 824702511.

It is an interprime number because it is at equal distance from previous prime (115207427) and next prime (115207429).

It is a junction number, because it is equal to n+sod(n) for n = 115207395 and 115207404.

It is not an unprimeable number, because it can be changed into a prime (115207423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97378 + ... + 98553.

Almost surely, 2^115207428 is an apocalyptic number.

It is an amenable number.

115207428 is an abundant number, since it is smaller than the sum of its proper divisors (197500044).

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

115207428 is a wasteful number, since it uses less digits than its factorization.

115207428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195952 (or 195943 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 115207428 is about 10733.4723179407. The cubic root of 115207428 is about 486.5866174295.

Adding to 115207428 its reverse (824702511), we get a palindrome (939909939).

The spelling of 115207428 in words is "one hundred fifteen million, two hundred seven thousand, four hundred twenty-eight".