45401252 has 24 divisors (see below), whose sum is σ = 86201976. Its totient is φ = 20798208.

The previous prime is 45401233. The next prime is 45401281. The reversal of 45401252 is 25210454.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7529536 + 37871716 = 2744^2 + 6154^2 .

It is a super-2 number, since 2×45401252² = 4122547366335008, which contains 22 as substring.

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, 3938 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (3591749).

Almost surely, 2^45401252 is an apocalyptic number.

It is an amenable number.

45401252 is a deficient number, since it is larger than the sum of its proper divisors (40800724).

45401252 is a wasteful number, since it uses less digits than its factorization.

45401252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527 (or 6525 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45401252 is about 6738.0451170944. The cubic root of 45401252 is about 356.7433966963.

The spelling of 45401252 in words is "forty-five million, four hundred one thousand, two hundred fifty-two".