61820304 has 80 divisors (see below), whose sum is σ = 196570752. Its totient is φ = 16303104.

The previous prime is 61820273. The next prime is 61820321. The reversal of 61820304 is 40302816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2709 + ... + 11444.

Almost surely, 2^61820304 is an apocalyptic number.

It is an amenable number.

61820304 is an abundant number, since it is smaller than the sum of its proper divisors (134750448).

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

61820304 is a wasteful number, since it uses less digits than its factorization.

61820304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14184 (or 14178 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 61820304 is about 7862.5888866200. The cubic root of 61820304 is about 395.4064160693.

The spelling of 61820304 in words is "sixty-one million, eight hundred twenty thousand, three hundred four".