42571396 has 18 divisors (see below), whose sum is σ = 86663598. Its totient is φ = 18244800.

The previous prime is 42571379. The next prime is 42571411. The reversal of 42571396 is 69317524.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 20575296 = 4690^2 + 4536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108405 + ... + 108796.

Almost surely, 2^42571396 is an apocalyptic number.

It is an amenable number.

42571396 is an abundant number, since it is smaller than the sum of its proper divisors (44092202).

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

42571396 is a wasteful number, since it uses less digits than its factorization.

42571396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217219 (or 217210 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 42571396 is about 6524.6759306497. The cubic root of 42571396 is about 349.1719089697.

The spelling of 42571396 in words is "forty-two million, five hundred seventy-one thousand, three hundred ninety-six".