1400431166 has 4 divisors (see below), whose sum is σ = 2100646752. Its totient is φ = 700215582.

The previous prime is 1400431163. The next prime is 1400431187. The reversal of 1400431166 is 6611340041.

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

It is a super-2 number, since 2×1400431166² = 3922414901408239112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400431163) 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 as a sum of consecutive naturals, namely, 350107790 + ... + 350107793.

It is an arithmetic number, because the mean of its divisors is an integer number (525161688).

Almost surely, 2^1400431166 is an apocalyptic number.

1400431166 is a deficient number, since it is larger than the sum of its proper divisors (700215586).

1400431166 is an equidigital number, since it uses as much as digits as its factorization.

1400431166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700215585.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1400431166 is about 37422.3351222235. The cubic root of 1400431166 is about 1118.8037733025.

The spelling of 1400431166 in words is "one billion, four hundred million, four hundred thirty-one thousand, one hundred sixty-six".