45450644 has 12 divisors (see below), whose sum is σ = 79613268. Its totient is φ = 22704000.

The previous prime is 45450631. The next prime is 45450653. The reversal of 45450644 is 44605454.

It can be written as a sum of positive squares in 2 ways, for example, as 12250000 + 33200644 = 3500^2 + 5762^2 .

It is a super-2 number, since 2×45450644² = 4131522080029472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45450644.

It is a congruent number.

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, 74 + ... + 9534.

It is an arithmetic number, because the mean of its divisors is an integer number (6634439).

Almost surely, 2^45450644 is an apocalyptic number.

It is an amenable number.

45450644 is a deficient number, since it is larger than the sum of its proper divisors (34162624).

45450644 is a wasteful number, since it uses less digits than its factorization.

45450644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666 (or 10664 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 45450644 is about 6741.7092788105. The cubic root of 45450644 is about 356.8727168012.

The spelling of 45450644 in words is "forty-five million, four hundred fifty thousand, six hundred forty-four".