90428344 has 8 divisors (see below), whose sum is σ = 169553160. Its totient is φ = 45214168.

The previous prime is 90428323. The next prime is 90428419. The reversal of 90428344 is 44382409.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651764 + ... + 5651779.

It is an arithmetic number, because the mean of its divisors is an integer number (21194145).

Almost surely, 2^90428344 is an apocalyptic number.

It is an amenable number.

90428344 is a deficient number, since it is larger than the sum of its proper divisors (79124816).

90428344 is a wasteful number, since it uses less digits than its factorization.

90428344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11303549 (or 11303545 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 90428344 is about 9509.3818936879. The cubic root of 90428344 is about 448.8503063304.

The spelling of 90428344 in words is "ninety million, four hundred twenty-eight thousand, three hundred forty-four".