42990622 has 8 divisors (see below), whose sum is σ = 64770696. Its totient is φ = 21400392.

The previous prime is 42990599. The next prime is 42990631. The reversal of 42990622 is 22609924.

It is a happy number.

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

It is a congruent number.

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, 46893 + ... + 47800.

It is an arithmetic number, because the mean of its divisors is an integer number (8096337).

Almost surely, 2^42990622 is an apocalyptic number.

42990622 is a deficient number, since it is larger than the sum of its proper divisors (21780074).

42990622 is a wasteful number, since it uses less digits than its factorization.

42990622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94922.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 42990622 is about 6556.7234195137. The cubic root of 42990622 is about 350.3143352978.

The spelling of 42990622 in words is "forty-two million, nine hundred ninety thousand, six hundred twenty-two".