61620304 has 20 divisors (see below), whose sum is σ = 120304800. Its totient is φ = 30573920.

The previous prime is 61620269. The next prime is 61620341. The reversal of 61620304 is 40302616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12604 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (6015240).

Almost surely, 2^61620304 is an apocalyptic number.

It is an amenable number.

61620304 is a deficient number, since it is larger than the sum of its proper divisors (58684496).

61620304 is a wasteful number, since it uses less digits than its factorization.

61620304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29538 (or 29532 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 61620304 is about 7849.8601261424. The cubic root of 61620304 is about 394.9795513636.

The spelling of 61620304 in words is "sixty-one million, six hundred twenty thousand, three hundred four".