61930404 has 18 divisors (see below), whose sum is σ = 156546390. Its totient is φ = 20643456.

The previous prime is 61930403. The next prime is 61930409. The reversal of 61930404 is 40403916.

61930404 is a `hidden beast` number, since 619 + 3 + 0 + 40 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 1557504 = 7770^2 + 1248^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61930403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 860109 + ... + 860180.

Almost surely, 2^61930404 is an apocalyptic number.

It is an amenable number.

61930404 is an abundant number, since it is smaller than the sum of its proper divisors (94615986).

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

61930404 is a wasteful number, since it uses less digits than its factorization.

61930404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720299 (or 1720294 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61930404 is about 7869.5872826979. The cubic root of 61930404 is about 395.6410122821.

The spelling of 61930404 in words is "sixty-one million, nine hundred thirty thousand, four hundred four".