45432491 has 4 divisors (see below), whose sum is σ = 48927312. Its totient is φ = 41937672.

The previous prime is 45432407. The next prime is 45432493. The reversal of 45432491 is 19423454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45432491 - 2¹⁸ = 45170347 is a prime.

It is a super-3 number, since 3×45432491³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45432493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747391 + ... + 1747416.

It is an arithmetic number, because the mean of its divisors is an integer number (12231828).

Almost surely, 2^45432491 is an apocalyptic number.

45432491 is a deficient number, since it is larger than the sum of its proper divisors (3494821).

45432491 is a wasteful number, since it uses less digits than its factorization.

45432491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494820.

The product of its digits is 17280, while the sum is 32.

The square root of 45432491 is about 6740.3628240622. The cubic root of 45432491 is about 356.8251987865.

The spelling of 45432491 in words is "forty-five million, four hundred thirty-two thousand, four hundred ninety-one".