45399752 has 8 divisors (see below), whose sum is σ = 85124550. Its totient is φ = 22699872.

The previous prime is 45399749. The next prime is 45399793. The reversal of 45399752 is 25799354.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 857476 = 6674^2 + 926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×45399752² = 4122274963323008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2837477 + ... + 2837492.

Almost surely, 2^45399752 is an apocalyptic number.

It is an amenable number.

45399752 is a deficient number, since it is larger than the sum of its proper divisors (39724798).

45399752 is a wasteful number, since it uses less digits than its factorization.

45399752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674975 (or 5674971 counting only the distinct ones).

The product of its digits is 340200, while the sum is 44.

The square root of 45399752 is about 6737.9338079266. The cubic root of 45399752 is about 356.7394678693.

The spelling of 45399752 in words is "forty-five million, three hundred ninety-nine thousand, seven hundred fifty-two".