61310404 has 6 divisors (see below), whose sum is σ = 107293214. Its totient is φ = 30655200.

The previous prime is 61310401. The next prime is 61310411. The reversal of 61310404 is 40401316.

It is a happy number.

61310404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 59752900 + 1557504 = 7730^2 + 1248^2 .

It is not an unprimeable number, because it can be changed into a prime (61310401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7663797 + ... + 7663804.

Almost surely, 2^61310404 is an apocalyptic number.

It is an amenable number.

61310404 is a deficient number, since it is larger than the sum of its proper divisors (45982810).

61310404 is a wasteful number, since it uses less digits than its factorization.

61310404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327605 (or 15327603 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61310404 is about 7830.0960402795. The cubic root of 61310404 is about 394.3162962997.

The spelling of 61310404 in words is "sixty-one million, three hundred ten thousand, four hundred four".