90270742 has 8 divisors (see below), whose sum is σ = 136927800. Its totient is φ = 44628144.

The previous prime is 90270737. The next prime is 90270757. The reversal of 90270742 is 24707209.

It is a happy number.

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

It is a super-3 number, since 3×90270742³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 253392 + ... + 253747.

It is an arithmetic number, because the mean of its divisors is an integer number (17115975).

Almost surely, 2^90270742 is an apocalyptic number.

90270742 is a deficient number, since it is larger than the sum of its proper divisors (46657058).

90270742 is a wasteful number, since it uses less digits than its factorization.

90270742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507230.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 90270742 is about 9501.0916214928. The cubic root of 90270742 is about 448.5893968314.

The spelling of 90270742 in words is "ninety million, two hundred seventy thousand, seven hundred forty-two".