90606402 has 24 divisors (see below), whose sum is σ = 206646960. Its totient is φ = 28612440.

The previous prime is 90606401. The next prime is 90606403. The reversal of 90606402 is 20460609.

It is an interprime number because it is at equal distance from previous prime (90606401) and next prime (90606403).

It is not an unprimeable number, because it can be changed into a prime (90606401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132124 + ... + 132807.

It is an arithmetic number, because the mean of its divisors is an integer number (8610290).

Almost surely, 2^90606402 is an apocalyptic number.

90606402 is an abundant number, since it is smaller than the sum of its proper divisors (116040558).

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

90606402 is a wasteful number, since it uses less digits than its factorization.

90606402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264958 (or 264955 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 90606402 is about 9518.7395173941. The cubic root of 90606402 is about 449.1447161920.

The spelling of 90606402 in words is "ninety million, six hundred six thousand, four hundred two".