42468990 has 32 divisors (see below), whose sum is σ = 107291520. Its totient is φ = 10728864.

The previous prime is 42468973. The next prime is 42468997. The reversal of 42468990 is 9986424.

It is a super-2 number, since 2×42468990² = 3607230223240200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42468997) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36684 + ... + 37823.

It is an arithmetic number, because the mean of its divisors is an integer number (3352860).

Almost surely, 2^42468990 is an apocalyptic number.

42468990 is an abundant number, since it is smaller than the sum of its proper divisors (64822530).

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

42468990 is a wasteful number, since it uses less digits than its factorization.

42468990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74536.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 42468990 is about 6516.8236127733. The cubic root of 42468990 is about 348.8917051099.

The spelling of 42468990 in words is "forty-two million, four hundred sixty-eight thousand, nine hundred ninety".