90401418 has 12 divisors (see below), whose sum is σ = 195869778. Its totient is φ = 30133800.

The previous prime is 90401413. The next prime is 90401419. The reversal of 90401418 is 81410409.

It can be written as a sum of positive squares in only one way, i.e., 85877289 + 4524129 = 9267^2 + 2127^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90401391 and 90401400.

It is not an unprimeable number, because it can be changed into a prime (90401413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2511133 + ... + 2511168.

Almost surely, 2^90401418 is an apocalyptic number.

90401418 is an abundant number, since it is smaller than the sum of its proper divisors (105468360).

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

90401418 is a wasteful number, since it uses less digits than its factorization.

90401418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022309 (or 5022306 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 90401418 is about 9507.9660285468. The cubic root of 90401418 is about 448.8057519257.

The spelling of 90401418 in words is "ninety million, four hundred one thousand, four hundred eighteen".