900402 has 8 divisors (see below), whose sum is σ = 1800816. Its totient is φ = 300132.

The previous prime is 900397. The next prime is 900409. The reversal of 900402 is 204009.

It is a sphenic number, since it is the product of 3 distinct primes.

900402 is an admirable number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (900409) by changing a digit.

900402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75028 + ... + 75039.

It is an arithmetic number, because the mean of its divisors is an integer number (225102).

2⁹⁰⁰⁴⁰² is an apocalyptic number.

900402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

900402 is a wasteful number, since it uses less digits than its factorization.

900402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150072.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 900402 is about 948.8951469999. The cubic root of 900402 is about 96.5633113850.

The spelling of 900402 in words is "nine hundred thousand, four hundred two".