42391792 has 10 divisors (see below), whose sum is σ = 82134128. Its totient is φ = 21195888.

The previous prime is 42391759. The next prime is 42391861. The reversal of 42391792 is 29719324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324728 + ... + 1324759.

Almost surely, 2^42391792 is an apocalyptic number.

It is an amenable number.

42391792 is a deficient number, since it is larger than the sum of its proper divisors (39742336).

42391792 is a wasteful number, since it uses less digits than its factorization.

42391792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649495 (or 2649489 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 42391792 is about 6510.8979411445. The cubic root of 42391792 is about 348.6801776091.

The spelling of 42391792 in words is "forty-two million, three hundred ninety-one thousand, seven hundred ninety-two".