90142268 has 6 divisors (see below), whose sum is σ = 157748976. Its totient is φ = 45071132.

The previous prime is 90142253. The next prime is 90142303. The reversal of 90142268 is 86224109.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267780 + ... + 11267787.

It is an arithmetic number, because the mean of its divisors is an integer number (26291496).

Almost surely, 2^90142268 is an apocalyptic number.

It is an amenable number.

90142268 is a deficient number, since it is larger than the sum of its proper divisors (67606708).

90142268 is a wasteful number, since it uses less digits than its factorization.

90142268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535571 (or 22535569 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 90142268 is about 9494.3282016160. The cubic root of 90142268 is about 448.3764838567.

The spelling of 90142268 in words is "ninety million, one hundred forty-two thousand, two hundred sixty-eight".