45401732 has 24 divisors (see below), whose sum is σ = 82371072. Its totient is φ = 21873600.

The previous prime is 45401729. The next prime is 45401737. The reversal of 45401732 is 23710454.

It is a super-2 number, since 2×45401732² = 4122634537199648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45401737) by changing a digit.

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, 34193 + ... + 35495.

It is an arithmetic number, because the mean of its divisors is an integer number (3432128).

Almost surely, 2^45401732 is an apocalyptic number.

It is an amenable number.

45401732 is a deficient number, since it is larger than the sum of its proper divisors (36969340).

45401732 is a wasteful number, since it uses less digits than its factorization.

45401732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 45401732 is about 6738.0807356398. The cubic root of 45401732 is about 356.7446539026.

The spelling of 45401732 in words is "forty-five million, four hundred one thousand, seven hundred thirty-two".