42731376 has 20 divisors (see below), whose sum is σ = 110389512. Its totient is φ = 14243776.

The previous prime is 42731371. The next prime is 42731419. The reversal of 42731376 is 67313724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42731371) 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, 445071 + ... + 445166.

Almost surely, 2^42731376 is an apocalyptic number.

It is an amenable number.

42731376 is an abundant number, since it is smaller than the sum of its proper divisors (67658136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42731376 is a wasteful number, since it uses less digits than its factorization.

42731376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890248 (or 890242 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 42731376 is about 6536.9240472871. The cubic root of 42731376 is about 349.6087491941.

The spelling of 42731376 in words is "forty-two million, seven hundred thirty-one thousand, three hundred seventy-six".