900630 has 24 divisors (see below), whose sum is σ = 2341872. Its totient is φ = 240144.

The previous prime is 900623. The next prime is 900649. The reversal of 900630 is 36009.

It is a super-2 number, since 2×900630² = 1622268793800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

900630 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 11 ways as a sum of consecutive naturals, for example, 4914 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (97578).

2⁹⁰⁰⁶³⁰ is an apocalyptic number.

900630 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

900630 is an abundant number, since it is smaller than the sum of its proper divisors (1441242).

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

900630 is a wasteful number, since it uses less digits than its factorization.

900630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10020 (or 10017 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 900630 is about 949.0152791183. The cubic root of 900630 is about 96.5714612917.

Adding to 900630 its reverse (36009), we get a palindrome (936639).

The spelling of 900630 in words is "nine hundred thousand, six hundred thirty".