90649244 has 24 divisors (see below), whose sum is σ = 187551840. Its totient is φ = 37509696.

The previous prime is 90649243. The next prime is 90649303. The reversal of 90649244 is 44294609.

It is a junction number, because it is equal to n+sod(n) for n = 90649198 and 90649207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90649243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55007 + ... + 56630.

It is an arithmetic number, because the mean of its divisors is an integer number (7814660).

Almost surely, 2^90649244 is an apocalyptic number.

It is an amenable number.

90649244 is an abundant number, since it is smaller than the sum of its proper divisors (96902596).

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

90649244 is a wasteful number, since it uses less digits than its factorization.

90649244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111677 (or 111675 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 90649244 is about 9520.9896544424. The cubic root of 90649244 is about 449.2154956862.

The spelling of 90649244 in words is "ninety million, six hundred forty-nine thousand, two hundred forty-four".