90273442 has 8 divisors (see below), whose sum is σ = 154754496. Its totient is φ = 38688612.

The previous prime is 90273419. The next prime is 90273467. The reversal of 90273442 is 24437209.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3224038 + ... + 3224065.

It is an arithmetic number, because the mean of its divisors is an integer number (19344312).

Almost surely, 2^90273442 is an apocalyptic number.

90273442 is a deficient number, since it is larger than the sum of its proper divisors (64481054).

90273442 is a wasteful number, since it uses less digits than its factorization.

90273442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448112.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 90273442 is about 9501.2337093664. The cubic root of 90273442 is about 448.5938692266.

The spelling of 90273442 in words is "ninety million, two hundred seventy-three thousand, four hundred forty-two".