45465489 has 32 divisors (see below), whose sum is σ = 70260480. Its totient is φ = 29030400.

The previous prime is 45465487. The next prime is 45465509. The reversal of 45465489 is 98456454.

It is not a de Polignac number, because 45465489 - 2¹ = 45465487 is a prime.

It is a super-2 number, since 2×45465489² = 4134221380018242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45465481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70609 + ... + 71249.

It is an arithmetic number, because the mean of its divisors is an integer number (2195640).

Almost surely, 2^45465489 is an apocalyptic number.

It is an amenable number.

45465489 is a deficient number, since it is larger than the sum of its proper divisors (24794991).

45465489 is a wasteful number, since it uses less digits than its factorization.

45465489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 45465489 is about 6742.8101708412. The cubic root of 45465489 is about 356.9115662603.

It can be divided in two parts, 45465 and 489, that added together give a palindrome (45954).

The spelling of 45465489 in words is "forty-five million, four hundred sixty-five thousand, four hundred eighty-nine".