90456860 has 48 divisors (see below), whose sum is σ = 210122976. Its totient is φ = 32493312.

The previous prime is 90456859. The next prime is 90456889. The reversal of 90456860 is 6865409.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4919 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (4377562).

Almost surely, 2^90456860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90456860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105061488).

90456860 is an abundant number, since it is smaller than the sum of its proper divisors (119666116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90456860 is a wasteful number, since it uses less digits than its factorization.

90456860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462 (or 9460 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 90456860 is about 9510.8811368874. The cubic root of 90456860 is about 448.8974820631.

The spelling of 90456860 in words is "ninety million, four hundred fifty-six thousand, eight hundred sixty".