1400431322 has 4 divisors (see below), whose sum is σ = 2100646986. Its totient is φ = 700215660.

The previous prime is 1400431313. The next prime is 1400431339. The reversal of 1400431322 is 2231340041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 930799081 + 469632241 = 30509^2 + 21671^2 .

It is a super-2 number, since 2×1400431322² = 3922415775277335368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400431294 and 1400431303.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 350107829 + ... + 350107832.

Almost surely, 2^1400431322 is an apocalyptic number.

1400431322 is a deficient number, since it is larger than the sum of its proper divisors (700215664).

1400431322 is an equidigital number, since it uses as much as digits as its factorization.

1400431322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700215663.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1400431322 is about 37422.3372065402. The cubic root of 1400431322 is about 1118.8038148452.

Adding to 1400431322 its reverse (2231340041), we get a palindrome (3631771363).

The spelling of 1400431322 in words is "one billion, four hundred million, four hundred thirty-one thousand, three hundred twenty-two".