90440862 has 8 divisors (see below), whose sum is σ = 180881736. Its totient is φ = 30146952.

The previous prime is 90440849. The next prime is 90440863. The reversal of 90440862 is 26804409.

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

90440862 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90440863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7536733 + ... + 7536744.

It is an arithmetic number, because the mean of its divisors is an integer number (22610217).

Almost surely, 2^90440862 is an apocalyptic number.

90440862 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90440862 is a wasteful number, since it uses less digits than its factorization.

90440862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15073482.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 90440862 is about 9510.0400630071. The cubic root of 90440862 is about 448.8710168312.

The spelling of 90440862 in words is "ninety million, four hundred forty thousand, eight hundred sixty-two".