745738650 has 60 divisors (see below), whose sum is σ = 2072059902. Its totient is φ = 198862560.

The previous prime is 745738639. The next prime is 745738661. The reversal of 745738650 is 56837547.

745738650 is a `hidden beast` number, since 74 + 573 + 8 + 6 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (745738639) and next prime (745738661).

It can be written as a sum of positive squares in 3 ways, for example, as 648262521 + 97476129 = 25461^2 + 9873^2 .

It is a super-2 number, since 2×745738650² = 1112252268207645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 745738596 and 745738605.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 88017 + ... + 96116.

Almost surely, 2^745738650 is an apocalyptic number.

745738650 is an abundant number, since it is smaller than the sum of its proper divisors (1326321252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745738650 is a wasteful number, since it uses less digits than its factorization.

745738650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184157 (or 184143 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 745738650 is about 27308.2157967158. The cubic root of 745738650 is about 906.8362744683.

The spelling of 745738650 in words is "seven hundred forty-five million, seven hundred thirty-eight thousand, six hundred fifty".