61428474 has 24 divisors (see below), whose sum is σ = 133271892. Its totient is φ = 20448960.

The previous prime is 61428443. The next prime is 61428487. The reversal of 61428474 is 47482416.

It can be written as a sum of positive squares in 2 ways, for example, as 59397849 + 2030625 = 7707^2 + 1425^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15364 + ... + 18944.

Almost surely, 2^61428474 is an apocalyptic number.

61428474 is an abundant number, since it is smaller than the sum of its proper divisors (71843418).

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

61428474 is a wasteful number, since it uses less digits than its factorization.

61428474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542 (or 4539 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 61428474 is about 7837.6319127655. The cubic root of 61428474 is about 394.5692553841.

The spelling of 61428474 in words is "sixty-one million, four hundred twenty-eight thousand, four hundred seventy-four".