90401002 has 16 divisors (see below), whose sum is σ = 143776512. Its totient is φ = 42482880.

The previous prime is 90400997. The next prime is 90401009. The reversal of 90401002 is 20010409.

It is not an unprimeable number, because it can be changed into a prime (90401009) 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, 32353 + ... + 35035.

It is an arithmetic number, because the mean of its divisors is an integer number (8986032).

Almost surely, 2^90401002 is an apocalyptic number.

90401002 is a deficient number, since it is larger than the sum of its proper divisors (53375510).

90401002 is a wasteful number, since it uses less digits than its factorization.

90401002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 90401002 is about 9507.9441521288. The cubic root of 90401002 is about 448.8050635018.

The spelling of 90401002 in words is "ninety million, four hundred one thousand, two".