900001026 has 24 divisors (see below), whose sum is σ = 1991493504. Its totient is φ = 293617080.

The previous prime is 900001009. The next prime is 900001033. The reversal of 900001026 is 620100009.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531070 + ... + 532761.

It is an arithmetic number, because the mean of its divisors is an integer number (82978896).

Almost surely, 2^900001026 is an apocalyptic number.

900001026 is an abundant number, since it is smaller than the sum of its proper divisors (1091492478).

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

900001026 is a wasteful number, since it uses less digits than its factorization.

900001026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063886 (or 1063883 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 900001026 is about 30000.0170999951. The cubic root of 900001026 is about 965.4897514915.

The spelling of 900001026 in words is "nine hundred million, one thousand, twenty-six".