42923445 has 16 divisors (see below), whose sum is σ = 68764032. Its totient is φ = 22863680.

The previous prime is 42923431. The next prime is 42923467. The reversal of 42923445 is 54432924.

It is not a de Polignac number, because 42923445 - 2⁶ = 42923381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16504 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (4297752).

Almost surely, 2^42923445 is an apocalyptic number.

It is an amenable number.

42923445 is a deficient number, since it is larger than the sum of its proper divisors (25840587).

42923445 is a wasteful number, since it uses less digits than its factorization.

42923445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612.

The product of its digits is 34560, while the sum is 33.

The square root of 42923445 is about 6551.5986598692. The cubic root of 42923445 is about 350.1317735109.

The spelling of 42923445 in words is "forty-two million, nine hundred twenty-three thousand, four hundred forty-five".