90049500 has 72 divisors (see below), whose sum is σ = 284090352. Its totient is φ = 24012000.

The previous prime is 90049471. The next prime is 90049511. The reversal of 90049500 is 594009.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5506 + ... + 14505.

Almost surely, 2^90049500 is an apocalyptic number.

90049500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

90049500 is an abundant number, since it is smaller than the sum of its proper divisors (194040852).

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

90049500 is a wasteful number, since it uses less digits than its factorization.

90049500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036 (or 20021 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 90049500 is about 9489.4415009525. The cubic root of 90049500 is about 448.2226186848. Note that the first 3 decimals are identical.

The spelling of 90049500 in words is "ninety million, forty-nine thousand, five hundred".