42937481 has 4 divisors (see below), whose sum is σ = 44804352. Its totient is φ = 41070612.

The previous prime is 42937457. The next prime is 42937483. The reversal of 42937481 is 18473924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42937481 - 2⁶ = 42937417 is a prime.

It is a super-2 number, since 2×42937481² = 3687254549250722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42937483) 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, 933401 + ... + 933446.

It is an arithmetic number, because the mean of its divisors is an integer number (11201088).

Almost surely, 2^42937481 is an apocalyptic number.

It is an amenable number.

42937481 is a deficient number, since it is larger than the sum of its proper divisors (1866871).

42937481 is a wasteful number, since it uses less digits than its factorization.

42937481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866870.

The product of its digits is 48384, while the sum is 38.

The square root of 42937481 is about 6552.6697612500. The cubic root of 42937481 is about 350.1699338060.

The spelling of 42937481 in words is "forty-two million, nine hundred thirty-seven thousand, four hundred eighty-one".