45642757 has 8 divisors (see below), whose sum is σ = 47198720. Its totient is φ = 44092080.

The previous prime is 45642713. The next prime is 45642761. The reversal of 45642757 is 75724654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45642757 - 2⁷ = 45642629 is a prime.

It is a super-2 number, since 2×45642757² = 4166522533122098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45642767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24619 + ... + 26407.

It is an arithmetic number, because the mean of its divisors is an integer number (5899840).

Almost surely, 2^45642757 is an apocalyptic number.

It is an amenable number.

45642757 is a deficient number, since it is larger than the sum of its proper divisors (1555963).

45642757 is a wasteful number, since it uses less digits than its factorization.

45642757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its digits is 235200, while the sum is 40.

The square root of 45642757 is about 6755.9423472969. The cubic root of 45642757 is about 357.3748256896.

The spelling of 45642757 in words is "forty-five million, six hundred forty-two thousand, seven hundred fifty-seven".