90002744 has 32 divisors (see below), whose sum is σ = 185613120. Its totient is φ = 40653696.

The previous prime is 90002723. The next prime is 90002761. The reversal of 90002744 is 44720009.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 4319 + ... + 14094.

It is an arithmetic number, because the mean of its divisors is an integer number (5800410).

Almost surely, 2^90002744 is an apocalyptic number.

90002744 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

90002744 is an abundant number, since it is smaller than the sum of its proper divisors (95610376).

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

90002744 is a wasteful number, since it uses less digits than its factorization.

90002744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18479 (or 18475 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 90002744 is about 9486.9776009011. The cubic root of 90002744 is about 448.1450290445.

The spelling of 90002744 in words is "ninety million, two thousand, seven hundred forty-four".