90142622 has 16 divisors (see below), whose sum is σ = 136533600. Its totient is φ = 44633952.

The previous prime is 90142607. The next prime is 90142627. The reversal of 90142622 is 22624109.

It is a junction number, because it is equal to n+sod(n) for n = 90142591 and 90142600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90142627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116228 + ... + 117000.

It is an arithmetic number, because the mean of its divisors is an integer number (8533350).

Almost surely, 2^90142622 is an apocalyptic number.

90142622 is a deficient number, since it is larger than the sum of its proper divisors (46390978).

90142622 is a wasteful number, since it uses less digits than its factorization.

90142622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 90142622 is about 9494.3468443069. The cubic root of 90142622 is about 448.3770707995.

The spelling of 90142622 in words is "ninety million, one hundred forty-two thousand, six hundred twenty-two".