745578634 has 16 divisors (see below), whose sum is σ = 1163780640. Its totient is φ = 357945840.

The previous prime is 745578629. The next prime is 745578643. The reversal of 745578634 is 436875547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68397 + ... + 78544.

It is an arithmetic number, because the mean of its divisors is an integer number (72736290).

Almost surely, 2^745578634 is an apocalyptic number.

745578634 is a deficient number, since it is larger than the sum of its proper divisors (418202006).

745578634 is a wasteful number, since it uses less digits than its factorization.

745578634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147045.

The product of its digits is 2822400, while the sum is 49.

The square root of 745578634 is about 27305.2858252757. The cubic root of 745578634 is about 906.7714087170.

The spelling of 745578634 in words is "seven hundred forty-five million, five hundred seventy-eight thousand, six hundred thirty-four".