90340420302 has 48 divisors (see below), whose sum is σ = 214014123648. Its totient is φ = 27314061840.

The previous prime is 90340420267. The next prime is 90340420309. The reversal of 90340420302 is 20302404309.

It is a happy number.

It is a super-2 number, since 2×90340420302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90340420309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427258 + ... + 602685.

It is an arithmetic number, because the mean of its divisors is an integer number (4458627576).

Almost surely, 2^90340420302 is an apocalyptic number.

90340420302 is an abundant number, since it is smaller than the sum of its proper divisors (123673703346).

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

90340420302 is a wasteful number, since it uses less digits than its factorization.

90340420302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030405 (or 1030402 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 90340420302 in words is "ninety billion, three hundred forty million, four hundred twenty thousand, three hundred two".