1027223440 has 40 divisors (see below), whose sum is σ = 2465342208. Its totient is φ = 397633920.

The previous prime is 1027223387. The next prime is 1027223441. The reversal of 1027223440 is 443227201.

It is a happy number.

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

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1027223441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204622 + ... + 209581.

Almost surely, 2^1027223440 is an apocalyptic number.

1027223440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1027223440 is an abundant number, since it is smaller than the sum of its proper divisors (1438118768).

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

1027223440 is a wasteful number, since it uses less digits than its factorization.

1027223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414247 (or 414241 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 1027223440 is about 32050.3266754022. The cubic root of 1027223440 is about 1008.9933570664.

The spelling of 1027223440 in words is "one billion, twenty-seven million, two hundred twenty-three thousand, four hundred forty".