68504428 has 24 divisors (see below), whose sum is σ = 122466960. Its totient is φ = 33519360.

The previous prime is 68504417. The next prime is 68504431. The reversal of 68504428 is 82440586.

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, 65800 + ... + 66832.

It is an arithmetic number, because the mean of its divisors is an integer number (5102790).

Almost surely, 2^68504428 is an apocalyptic number.

It is an amenable number.

68504428 is a deficient number, since it is larger than the sum of its proper divisors (53962532).

68504428 is a wasteful number, since it uses less digits than its factorization.

68504428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1375 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 68504428 is about 8276.7401795634. The cubic root of 68504428 is about 409.1722900843.

The spelling of 68504428 in words is "sixty-eight million, five hundred four thousand, four hundred twenty-eight".