1431091368 has 64 divisors (see below), whose sum is σ = 4543152000. Its totient is φ = 408882816.

The previous prime is 1431091339. The next prime is 1431091397. The reversal of 1431091368 is 8631901341.

It is an interprime number because it is at equal distance from previous prime (1431091339) and next prime (1431091397).

It is a super-2 number, since 2×1431091368² = 4096045007128222848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471733 + ... + 474756.

It is an arithmetic number, because the mean of its divisors is an integer number (70986750).

Almost surely, 2^1431091368 is an apocalyptic number.

1431091368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1431091368 is an abundant number, since it is smaller than the sum of its proper divisors (3112060632).

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

1431091368 is a wasteful number, since it uses less digits than its factorization.

1431091368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946511 (or 946501 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1431091368 is about 37829.7682784339. The cubic root of 1431091368 is about 1126.9097092861.

The spelling of 1431091368 in words is "one billion, four hundred thirty-one million, ninety-one thousand, three hundred sixty-eight".