42673491 has 12 divisors (see below), whose sum is σ = 70445232. Its totient is φ = 24384816.

The previous prime is 42673483. The next prime is 42673493. The reversal of 42673491 is 19437624.

It is not a de Polignac number, because 42673491 - 2³ = 42673483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42673493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338616 + ... + 338741.

It is an arithmetic number, because the mean of its divisors is an integer number (5870436).

Almost surely, 2^42673491 is an apocalyptic number.

42673491 is a deficient number, since it is larger than the sum of its proper divisors (27771741).

42673491 is a wasteful number, since it uses less digits than its factorization.

42673491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677370 (or 677367 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 42673491 is about 6532.4950057386. The cubic root of 42673491 is about 349.4508149147.

The spelling of 42673491 in words is "forty-two million, six hundred seventy-three thousand, four hundred ninety-one".