90459842 has 24 divisors (see below), whose sum is σ = 150663996. Its totient is φ = 40700000.

The previous prime is 90459841. The next prime is 90459847. The reversal of 90459842 is 24895409.

It can be written as a sum of positive squares in 2 ways, for example, as 85174441 + 5285401 = 9229^2 + 2299^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90459842.

It is not an unprimeable number, because it can be changed into a prime (90459841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22592 + ... + 26292.

Almost surely, 2^90459842 is an apocalyptic number.

90459842 is a deficient number, since it is larger than the sum of its proper divisors (60204154).

90459842 is a wasteful number, since it uses less digits than its factorization.

90459842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 90459842 is about 9511.0379034047. The cubic root of 90459842 is about 448.9024147923.

The spelling of 90459842 in words is "ninety million, four hundred fifty-nine thousand, eight hundred forty-two".