124788402 has 18 divisors (see below), whose sum is σ = 270477597. Its totient is φ = 41580336.

The previous prime is 124788343. The next prime is 124788427. The reversal of 124788402 is 204887421.

124788402 is a `hidden beast` number, since 1 + 247 + 8 + 8 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 108555561 + 16232841 = 10419^2 + 4029^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7899.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46078 + ... + 48710.

Almost surely, 2^124788402 is an apocalyptic number.

124788402 is an abundant number, since it is smaller than the sum of its proper divisors (145689195).

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

124788402 is an frugal number, since it uses more digits than its factorization.

124788402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 124788402 is about 11170.8729291851. The cubic root of 124788402 is about 499.7177099880.

The spelling of 124788402 in words is "one hundred twenty-four million, seven hundred eighty-eight thousand, four hundred two".