42372812 has 12 divisors (see below), whose sum is σ = 78055320. Its totient is φ = 20071296.

The previous prime is 42372787. The next prime is 42372821. The reversal of 42372812 is 21827324.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278693 + ... + 278844.

It is an arithmetic number, because the mean of its divisors is an integer number (6504610).

Almost surely, 2^42372812 is an apocalyptic number.

It is an amenable number.

42372812 is a deficient number, since it is larger than the sum of its proper divisors (35682508).

42372812 is a wasteful number, since it uses less digits than its factorization.

42372812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557560 (or 557558 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 42372812 is about 6509.4402217088. The cubic root of 42372812 is about 348.6281318601.

It can be divided in two parts, 423 and 72812, that multiplied together give a triangular number (30799476 = T₇₈₄₈).

The spelling of 42372812 in words is "forty-two million, three hundred seventy-two thousand, eight hundred twelve".