1400431430 has 16 divisors (see below), whose sum is σ = 2521892880. Its totient is φ = 559924512.

The previous prime is 1400431427. The next prime is 1400431441. The reversal of 1400431430 is 341340041.

It is a happy number.

It is a super-2 number, since 2×1400431430² = 3922416380263689800, which contains 22 as substring.

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, 6365 + ... + 53304.

It is an arithmetic number, because the mean of its divisors is an integer number (157618305).

Almost surely, 2^1400431430 is an apocalyptic number.

1400431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400431430 is a deficient number, since it is larger than the sum of its proper divisors (1121461450).

1400431430 is a wasteful number, since it uses less digits than its factorization.

1400431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62023.

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

The square root of 1400431430 is about 37422.3386495286. The cubic root of 1400431430 is about 1118.8038436056.

Adding to 1400431430 its reverse (341340041), we get a palindrome (1741771471).

The spelling of 1400431430 in words is "one billion, four hundred million, four hundred thirty-one thousand, four hundred thirty".