45009479 has 12 divisors (see below), whose sum is σ = 47138520. Its totient is φ = 42971040.

The previous prime is 45009469. The next prime is 45009487. The reversal of 45009479 is 97490054.

It is not a de Polignac number, because 45009479 - 2¹² = 45005383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45009449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91424 + ... + 91914.

It is an arithmetic number, because the mean of its divisors is an integer number (3928210).

Almost surely, 2^45009479 is an apocalyptic number.

45009479 is a deficient number, since it is larger than the sum of its proper divisors (2129041).

45009479 is a wasteful number, since it uses less digits than its factorization.

45009479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 45009479 is about 6708.9104182423. The cubic root of 45009479 is about 355.7143033561.

The spelling of 45009479 in words is "forty-five million, nine thousand, four hundred seventy-nine".