45342739 has 16 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 39797280.

The previous prime is 45342727. The next prime is 45342749. The reversal of 45342739 is 93724354.

It is a cyclic number.

It is not a de Polignac number, because 45342739 - 2⁵ = 45342707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45342698 and 45342707.

It is not an unprimeable number, because it can be changed into a prime (45342749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22824 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (3205440).

Almost surely, 2^45342739 is an apocalyptic number.

45342739 is a deficient number, since it is larger than the sum of its proper divisors (5944301).

45342739 is a wasteful number, since it uses less digits than its factorization.

45342739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010.

The product of its digits is 90720, while the sum is 37.

The square root of 45342739 is about 6733.7017308461. The cubic root of 45342739 is about 356.5900741968.

The spelling of 45342739 in words is "forty-five million, three hundred forty-two thousand, seven hundred thirty-nine".