811460240 has 40 divisors (see below), whose sum is σ = 1968677568. Its totient is φ = 310471040.

The previous prime is 811460231. The next prime is 811460257. The reversal of 811460240 is 42064118.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×811460240² = 1316935442201715200, which contains 22 as substring.

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, 218666 + ... + 222345.

Almost surely, 2^811460240 is an apocalyptic number.

811460240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

811460240 is an abundant number, since it is smaller than the sum of its proper divisors (1157217328).

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

811460240 is a wasteful number, since it uses less digits than its factorization.

811460240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441047 (or 441041 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 811460240 is about 28486.1411918147. The cubic root of 811460240 is about 932.7295766450.

The spelling of 811460240 in words is "eight hundred eleven million, four hundred sixty thousand, two hundred forty".