90214742 has 4 divisors (see below), whose sum is σ = 135322116. Its totient is φ = 45107370.

The previous prime is 90214739. The next prime is 90214759. The reversal of 90214742 is 24741209.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 22553684 + ... + 22553687.

It is an arithmetic number, because the mean of its divisors is an integer number (33830529).

Almost surely, 2^90214742 is an apocalyptic number.

90214742 is a deficient number, since it is larger than the sum of its proper divisors (45107374).

90214742 is a wasteful number, since it uses less digits than its factorization.

90214742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45107373.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 90214742 is about 9498.1441345139. The cubic root of 90214742 is about 448.4966159291.

The spelling of 90214742 in words is "ninety million, two hundred fourteen thousand, seven hundred forty-two".