45657049 has 9 divisors (see below), whose sum is σ = 47489533. Its totient is φ = 43893472.

The previous prime is 45657043. The next prime is 45657071. The reversal of 45657049 is 94075654.

The square root of 45657049 is 6757.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3822025 + 41835024 = 1955^2 + 6468^2 .

It is not a de Polignac number, because 45657049 - 2³ = 45657041 is a prime.

It is a super-2 number, since 2×45657049² = 4169132246776802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45657041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 195837 + ... + 196069.

Almost surely, 2^45657049 is an apocalyptic number.

45657049 is the 6757-th square number.

45657049 is the 3379-th centered octagonal number.

It is an amenable number.

45657049 is a deficient number, since it is larger than the sum of its proper divisors (1832484).

45657049 is an frugal number, since it uses more digits than its factorization.

45657049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The cubic root of 45657049 is about 357.4121230859.

The spelling of 45657049 in words is "forty-five million, six hundred fifty-seven thousand, forty-nine".