90838742 has 8 divisors (see below), whose sum is σ = 140653632. Its totient is φ = 43954200.

The previous prime is 90838729. The next prime is 90838751. The reversal of 90838742 is 24783809.

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

It is a self number, because there is not a number n which added to its sum of digits gives 90838742.

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, 732509 + ... + 732632.

It is an arithmetic number, because the mean of its divisors is an integer number (17581704).

Almost surely, 2^90838742 is an apocalyptic number.

90838742 is a deficient number, since it is larger than the sum of its proper divisors (49814890).

90838742 is a wasteful number, since it uses less digits than its factorization.

90838742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465174.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 90838742 is about 9530.9360505671. The cubic root of 90838742 is about 449.5282991402.

The spelling of 90838742 in words is "ninety million, eight hundred thirty-eight thousand, seven hundred forty-two".