45430839 has 12 divisors (see below), whose sum is σ = 65857896. Its totient is φ = 30178512.

The previous prime is 45430813. The next prime is 45430867. The reversal of 45430839 is 93803454.

It is not a de Polignac number, because 45430839 - 2⁵ = 45430807 is a prime.

It is a super-2 number, since 2×45430839² = 4127922264487842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45430039) 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, 6372 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (5488158).

Almost surely, 2^45430839 is an apocalyptic number.

45430839 is a deficient number, since it is larger than the sum of its proper divisors (20427057).

45430839 is a wasteful number, since it uses less digits than its factorization.

45430839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18126 (or 18123 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 45430839 is about 6740.2402776162. The cubic root of 45430839 is about 356.8208738173.

The spelling of 45430839 in words is "forty-five million, four hundred thirty thousand, eight hundred thirty-nine".