77404030 has 16 divisors (see below), whose sum is σ = 151993584. Its totient is φ = 28146880.

The previous prime is 77404027. The next prime is 77404051. The reversal of 77404030 is 3040477.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77403986 and 77404004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351727 + ... + 351946.

It is an arithmetic number, because the mean of its divisors is an integer number (9499599).

Almost surely, 2^77404030 is an apocalyptic number.

77404030 is a deficient number, since it is larger than the sum of its proper divisors (74589554).

77404030 is a wasteful number, since it uses less digits than its factorization.

77404030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703691.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 77404030 is about 8797.9560126202. The cubic root of 77404030 is about 426.1748898021.

The spelling of 77404030 in words is "seventy-seven million, four hundred four thousand, thirty".