90040875 has 16 divisors (see below), whose sum is σ = 149828640. Its totient is φ = 48021600.

The previous prime is 90040871. The next prime is 90040877. The reversal of 90040875 is 57804009.

It is not a de Polignac number, because 90040875 - 2² = 90040871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90040871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119680 + ... + 120429.

It is an arithmetic number, because the mean of its divisors is an integer number (9364290).

Almost surely, 2^90040875 is an apocalyptic number.

90040875 is a deficient number, since it is larger than the sum of its proper divisors (59787765).

90040875 is a wasteful number, since it uses less digits than its factorization.

90040875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240127 (or 240117 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 90040875 is about 9488.9870376137. The cubic root of 90040875 is about 448.2083078761.

The spelling of 90040875 in words is "ninety million, forty thousand, eight hundred seventy-five".