745001644 has 6 divisors (see below), whose sum is σ = 1303752884. Its totient is φ = 372500820.

The previous prime is 745001603. The next prime is 745001657. The reversal of 745001644 is 446100547.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93125202 + ... + 93125209.

Almost surely, 2^745001644 is an apocalyptic number.

It is an amenable number.

745001644 is a deficient number, since it is larger than the sum of its proper divisors (558751240).

745001644 is a wasteful number, since it uses less digits than its factorization.

745001644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186250415 (or 186250413 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 745001644 is about 27294.7182436456. The cubic root of 745001644 is about 906.5374369471.

The spelling of 745001644 in words is "seven hundred forty-five million, one thousand, six hundred forty-four".