90644248 has 32 divisors (see below), whose sum is σ = 176146560. Its totient is φ = 43683840.

The previous prime is 90644159. The next prime is 90644261. The reversal of 90644248 is 84244609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78040 + ... + 79192.

It is an arithmetic number, because the mean of its divisors is an integer number (5504580).

Almost surely, 2^90644248 is an apocalyptic number.

It is an amenable number.

90644248 is a deficient number, since it is larger than the sum of its proper divisors (85502312).

90644248 is a wasteful number, since it uses less digits than its factorization.

90644248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 90644248 is about 9520.7272831439. The cubic root of 90644248 is about 449.2072429170.

It can be divided in two parts, 906 and 44248, that added together give a palindrome (45154).

The spelling of 90644248 in words is "ninety million, six hundred forty-four thousand, two hundred forty-eight".