42490772 has 12 divisors (see below), whose sum is σ = 74417280. Its totient is φ = 21228696.

The previous prime is 42490759. The next prime is 42490793. The reversal of 42490772 is 27709424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879 + ... + 9657.

It is an arithmetic number, because the mean of its divisors is an integer number (6201440).

Almost surely, 2^42490772 is an apocalyptic number.

It is an amenable number.

42490772 is a deficient number, since it is larger than the sum of its proper divisors (31926508).

42490772 is a wasteful number, since it uses less digits than its factorization.

42490772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350 (or 8348 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 42490772 is about 6518.4946114881. The cubic root of 42490772 is about 348.9513428224.

The spelling of 42490772 in words is "forty-two million, four hundred ninety thousand, seven hundred seventy-two".