45152644 has 12 divisors (see below), whose sum is σ = 80944668. Its totient is φ = 22025600.

The previous prime is 45152593. The next prime is 45152651. The reversal of 45152644 is 44625154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 37970244 = 2680^2 + 6162^2 .

It is a super-2 number, since 2×45152644² = 4077522520381472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137497 + ... + 137824.

It is an arithmetic number, because the mean of its divisors is an integer number (6745389).

Almost surely, 2^45152644 is an apocalyptic number.

It is an amenable number.

45152644 is a deficient number, since it is larger than the sum of its proper divisors (35792024).

45152644 is a wasteful number, since it uses less digits than its factorization.

45152644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275366 (or 275364 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 45152644 is about 6719.5717125424. The cubic root of 45152644 is about 356.0910531730.

Adding to 45152644 its reverse (44625154), we get a palindrome (89777798).

It can be divided in two parts, 45152 and 644, that added together give a square (45796 = 214²).

The spelling of 45152644 in words is "forty-five million, one hundred fifty-two thousand, six hundred forty-four".