42979437 has 16 divisors (see below), whose sum is σ = 64241280. Its totient is φ = 28397376.

The previous prime is 42979427. The next prime is 42979457. The reversal of 42979437 is 73497924.

It is not a de Polignac number, because 42979437 - 2¹⁰ = 42978413 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 42979392 and 42979401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42979427) 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, 3993 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (4015080).

Almost surely, 2^42979437 is an apocalyptic number.

It is an amenable number.

42979437 is a deficient number, since it is larger than the sum of its proper divisors (21261843).

42979437 is a wasteful number, since it uses less digits than its factorization.

42979437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14209 (or 14203 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 42979437 is about 6555.8704227585. The cubic root of 42979437 is about 350.2839518830.

The spelling of 42979437 in words is "forty-two million, nine hundred seventy-nine thousand, four hundred thirty-seven".