900226440 has 128 divisors (see below), whose sum is σ = 3131308800. Its totient is φ = 229616640.

The previous prime is 900226429. The next prime is 900226507. The reversal of 900226440 is 44622009.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6720 + ... + 42960.

It is an arithmetic number, because the mean of its divisors is an integer number (24463350).

Almost surely, 2^900226440 is an apocalyptic number.

900226440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 900226440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565654400).

900226440 is an abundant number, since it is smaller than the sum of its proper divisors (2231082360).

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

900226440 is a wasteful number, since it uses less digits than its factorization.

900226440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36284 (or 36274 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 900226440 is about 30003.7737626453. The cubic root of 900226440 is about 965.5703501921.

Adding to 900226440 its reverse (44622009), we get a palindrome (944848449).

The spelling of 900226440 in words is "nine hundred million, two hundred twenty-six thousand, four hundred forty".