90242546 has 8 divisors (see below), whose sum is σ = 137583084. Its totient is φ = 44381520.

The previous prime is 90242539. The next prime is 90242549. The reversal of 90242546 is 64524209.

It can be written as a sum of positive squares in 2 ways, for example, as 86397025 + 3845521 = 9295^2 + 1961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90242549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369725 + ... + 369968.

Almost surely, 2^90242546 is an apocalyptic number.

90242546 is a deficient number, since it is larger than the sum of its proper divisors (47340538).

90242546 is a wasteful number, since it uses less digits than its factorization.

90242546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739756.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 90242546 is about 9499.6076761096. The cubic root of 90242546 is about 448.5426864448.

The spelling of 90242546 in words is "ninety million, two hundred forty-two thousand, five hundred forty-six".