42972403 has 8 divisors (see below), whose sum is σ = 44575200. Its totient is φ = 41377728.

The previous prime is 42972401. The next prime is 42972409. The reversal of 42972403 is 30427924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42972403 - 2¹ = 42972401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42972401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10050 + ... + 13672.

It is an arithmetic number, because the mean of its divisors is an integer number (5571900).

Almost surely, 2^42972403 is an apocalyptic number.

42972403 is a deficient number, since it is larger than the sum of its proper divisors (1602797).

42972403 is a wasteful number, since it uses less digits than its factorization.

42972403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42972403 is about 6555.3339350486. Note that the first 3 decimals coincide. The cubic root of 42972403 is about 350.2648417231.

The spelling of 42972403 in words is "forty-two million, nine hundred seventy-two thousand, four hundred three".