90274742 has 4 divisors (see below), whose sum is σ = 135412116. Its totient is φ = 45137370.

The previous prime is 90274739. The next prime is 90274763. The reversal of 90274742 is 24747209.

It is a happy number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 22568684 + ... + 22568687.

It is an arithmetic number, because the mean of its divisors is an integer number (33853029).

Almost surely, 2^90274742 is an apocalyptic number.

90274742 is a deficient number, since it is larger than the sum of its proper divisors (45137374).

90274742 is a wasteful number, since it uses less digits than its factorization.

90274742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45137373.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 90274742 is about 9501.3021212884. The cubic root of 90274742 is about 448.5960225702.

The spelling of 90274742 in words is "ninety million, two hundred seventy-four thousand, seven hundred forty-two".