90344144 has 20 divisors (see below), whose sum is σ = 190955040. Its totient is φ = 41065440.

The previous prime is 90344131. The next prime is 90344147. The reversal of 90344144 is 44144309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90344147) 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, 256484 + ... + 256835.

It is an arithmetic number, because the mean of its divisors is an integer number (9547752).

Almost surely, 2^90344144 is an apocalyptic number.

It is an amenable number.

90344144 is an abundant number, since it is smaller than the sum of its proper divisors (100610896).

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

90344144 is a wasteful number, since it uses less digits than its factorization.

90344144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513338 (or 513332 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 90344144 is about 9504.9536558576. The cubic root of 90344144 is about 448.7109513072.

The spelling of 90344144 in words is "ninety million, three hundred forty-four thousand, one hundred forty-four".