1431421264 has 40 divisors (see below), whose sum is σ = 3413392640. Its totient is φ = 566275968.

The previous prime is 1431421247. The next prime is 1431421291. The reversal of 1431421264 is 4621241341.

It is a super-3 number, since 3×1431421264³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 490104 + ... + 493015.

It is an arithmetic number, because the mean of its divisors is an integer number (85334816).

Almost surely, 2^1431421264 is an apocalyptic number.

1431421264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1431421264 is an abundant number, since it is smaller than the sum of its proper divisors (1981971376).

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

1431421264 is a wasteful number, since it uses less digits than its factorization.

1431421264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983147 (or 983141 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 1431421264 is about 37834.1282970812. The cubic root of 1431421264 is about 1126.9962945899.

The spelling of 1431421264 in words is "one billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred sixty-four".