42491074 has 8 divisors (see below), whose sum is σ = 66507840. Its totient is φ = 20321796.

The previous prime is 42491027. The next prime is 42491083. The reversal of 42491074 is 47019424.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 461814 + ... + 461905.

It is an arithmetic number, because the mean of its divisors is an integer number (8313480).

Almost surely, 2^42491074 is an apocalyptic number.

42491074 is a deficient number, since it is larger than the sum of its proper divisors (24016766).

42491074 is a wasteful number, since it uses less digits than its factorization.

42491074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923744.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42491074 is about 6518.5177763047. The cubic root of 42491074 is about 348.9521695356.

The spelling of 42491074 in words is "forty-two million, four hundred ninety-one thousand, seventy-four".