90007942 has 8 divisors (see below), whose sum is σ = 139367232. Its totient is φ = 43552200.

The previous prime is 90007937. The next prime is 90008021. The reversal of 90007942 is 24970009.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 725809 + ... + 725932.

It is an arithmetic number, because the mean of its divisors is an integer number (17420904).

Almost surely, 2^90007942 is an apocalyptic number.

90007942 is a deficient number, since it is larger than the sum of its proper divisors (49359290).

90007942 is a wasteful number, since it uses less digits than its factorization.

90007942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451774.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90007942 is about 9487.2515514242. The cubic root of 90007942 is about 448.1536562371.

The spelling of 90007942 in words is "ninety million, seven thousand, nine hundred forty-two".