45257732 has 12 divisors (see below), whose sum is σ = 85293516. Its totient is φ = 20888160.

The previous prime is 45257731. The next prime is 45257741. The reversal of 45257732 is 23775254.

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 35808256 = 3074^2 + 5984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45257692 and 45257701.

It is not an unprimeable number, because it can be changed into a prime (45257731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435119 + ... + 435222.

It is an arithmetic number, because the mean of its divisors is an integer number (7107793).

Almost surely, 2^45257732 is an apocalyptic number.

It is an amenable number.

45257732 is a deficient number, since it is larger than the sum of its proper divisors (40035784).

45257732 is a wasteful number, since it uses less digits than its factorization.

45257732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870358 (or 870356 counting only the distinct ones).

The product of its digits is 58800, while the sum is 35.

The square root of 45257732 is about 6727.3867140220. The cubic root of 45257732 is about 356.3670938778.

The spelling of 45257732 in words is "forty-five million, two hundred fifty-seven thousand, seven hundred thirty-two".