905401072 has 40 divisors (see below), whose sum is σ = 1926840960. Its totient is φ = 410224320.

The previous prime is 905401043. The next prime is 905401093. The reversal of 905401072 is 270104509.

It is a happy number.

It is a super-2 number, since 2×905401072² = 1639502202357498368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 905401072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57754 + ... + 71737.

It is an arithmetic number, because the mean of its divisors is an integer number (48171024).

Almost surely, 2^905401072 is an apocalyptic number.

905401072 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

905401072 is an abundant number, since it is smaller than the sum of its proper divisors (1021439888).

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

905401072 is a wasteful number, since it uses less digits than its factorization.

905401072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129541 (or 129535 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 905401072 is about 30089.8832167890. The cubic root of 905401072 is about 967.4168960484.

The spelling of 905401072 in words is "nine hundred five million, four hundred one thousand, seventy-two".