90074540 has 24 divisors (see below), whose sum is σ = 193771872. Its totient is φ = 35150720.

The previous prime is 90074531. The next prime is 90074557. The reversal of 90074540 is 4547009.

It is a super-2 number, since 2×90074540² = 16226845512423200, which contains 22 as substring.

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, 54104 + ... + 55743.

It is an arithmetic number, because the mean of its divisors is an integer number (8073828).

Almost surely, 2^90074540 is an apocalyptic number.

It is an amenable number.

90074540 is an abundant number, since it is smaller than the sum of its proper divisors (103697332).

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

90074540 is a wasteful number, since it uses less digits than its factorization.

90074540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109897 (or 109895 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 90074540 is about 9490.7607703492. The cubic root of 90074540 is about 448.2641604821.

The spelling of 90074540 in words is "ninety million, seventy-four thousand, five hundred forty".