90423080 has 32 divisors (see below), whose sum is σ = 221948640. Its totient is φ = 32880960.

The previous prime is 90423077. The next prime is 90423083. The reversal of 90423080 is 8032409.

It is an interprime number because it is at equal distance from previous prime (90423077) and next prime (90423083).

It is not an unprimeable number, because it can be changed into a prime (90423083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102314 + ... + 103193.

It is an arithmetic number, because the mean of its divisors is an integer number (6935895).

Almost surely, 2^90423080 is an apocalyptic number.

It is an amenable number.

90423080 is an abundant number, since it is smaller than the sum of its proper divisors (131525560).

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

90423080 is a wasteful number, since it uses less digits than its factorization.

90423080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205529 (or 205525 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 90423080 is about 9509.1051103666. The cubic root of 90423080 is about 448.8415966944.

Adding to 90423080 its reverse (8032409), we get a palindrome (98455489).

The spelling of 90423080 in words is "ninety million, four hundred twenty-three thousand, eighty".