49644666 has 12 divisors (see below), whose sum is σ = 107563482. Its totient is φ = 16548216.

The previous prime is 49644659. The next prime is 49644689. The reversal of 49644666 is 66644694.

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 2653641 = 6855^2 + 1629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1379001 + ... + 1379036.

Almost surely, 2^49644666 is an apocalyptic number.

49644666 is an abundant number, since it is smaller than the sum of its proper divisors (57918816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49644666 is a wasteful number, since it uses less digits than its factorization.

49644666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758045 (or 2758042 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 49644666 is about 7045.8971039890. The cubic root of 49644666 is about 367.5283665456.

The spelling of 49644666 in words is "forty-nine million, six hundred forty-four thousand, six hundred sixty-six".