45439769 has 8 divisors (see below), whose sum is σ = 46986240. Its totient is φ = 43898400.

The previous prime is 45439763. The next prime is 45439829. The reversal of 45439769 is 96793454.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45439769 is a prime.

It is a super-2 number, since 2×45439769² = 4129545213546722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45439763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27437 + ... + 29045.

It is an arithmetic number, because the mean of its divisors is an integer number (5873280).

Almost surely, 2^45439769 is an apocalyptic number.

It is an amenable number.

45439769 is a deficient number, since it is larger than the sum of its proper divisors (1546471).

45439769 is a wasteful number, since it uses less digits than its factorization.

45439769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its digits is 816480, while the sum is 47.

The square root of 45439769 is about 6740.9026843591. The cubic root of 45439769 is about 356.8442514885.

The spelling of 45439769 in words is "forty-five million, four hundred thirty-nine thousand, seven hundred sixty-nine".