1400122431 has 24 divisors (see below), whose sum is σ = 2143037520. Its totient is φ = 877821696.

The previous prime is 1400122403. The next prime is 1400122453. The reversal of 1400122431 is 1342210041.

It is not a de Polignac number, because 1400122431 - 2⁷ = 1400122303 is a prime.

It is a super-2 number, since 2×1400122431² = 3920685643578699522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400122531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252616 + ... + 258098.

It is an arithmetic number, because the mean of its divisors is an integer number (89293230).

Almost surely, 2^1400122431 is an apocalyptic number.

1400122431 is a deficient number, since it is larger than the sum of its proper divisors (742915089).

1400122431 is a wasteful number, since it uses less digits than its factorization.

1400122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1400122431 is about 37418.2098850279. The cubic root of 1400122431 is about 1118.7215511799.

Adding to 1400122431 its reverse (1342210041), we get a palindrome (2742332472).

The spelling of 1400122431 in words is "one billion, four hundred million, one hundred twenty-two thousand, four hundred thirty-one".