745404136 has 24 divisors (see below), whose sum is σ = 1403573670. Its totient is φ = 371123328.

The previous prime is 745404089. The next prime is 745404167. The reversal of 745404136 is 631404547.

It can be written as a sum of positive squares in 3 ways, for example, as 729324036 + 16080100 = 27006^2 + 4010^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1337970 + ... + 1338526.

Almost surely, 2^745404136 is an apocalyptic number.

It is an amenable number.

745404136 is a deficient number, since it is larger than the sum of its proper divisors (658169534).

745404136 is an equidigital number, since it uses as much as digits as its factorization.

745404136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 745404136 is about 27302.0903229038. The cubic root of 745404136 is about 906.7006618117.

The spelling of 745404136 in words is "seven hundred forty-five million, four hundred four thousand, one hundred thirty-six".