1400220431 has 8 divisors (see below), whose sum is σ = 1458652800. Its totient is φ = 1342617120.

The previous prime is 1400220379. The next prime is 1400220443. The reversal of 1400220431 is 1340220041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400220431 - 2¹⁰ = 1400219407 is a prime.

It is a super-2 number, since 2×1400220431² = 3921234510779651522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400220491) 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, 203816 + ... + 210573.

It is an arithmetic number, because the mean of its divisors is an integer number (182331600).

Almost surely, 2^1400220431 is an apocalyptic number.

1400220431 is a deficient number, since it is larger than the sum of its proper divisors (58432369).

1400220431 is a wasteful number, since it uses less digits than its factorization.

1400220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414529.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1400220431 is about 37419.5193849413. The cubic root of 1400220431 is about 1118.7476517912.

Adding to 1400220431 its reverse (1340220041), we get a palindrome (2740440472).

The spelling of 1400220431 in words is "one billion, four hundred million, two hundred twenty thousand, four hundred thirty-one".