1400430999 has 16 divisors (see below), whose sum is σ = 2037619584. Its totient is φ = 848484000.

The previous prime is 1400430991. The next prime is 1400431037. The reversal of 1400430999 is 9990340041.

It is not a de Polignac number, because 1400430999 - 2³ = 1400430991 is a prime.

It is a super-2 number, since 2×1400430999² = 3922413965920276002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400430991) 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 15 ways as a sum of consecutive naturals, for example, 189457 + ... + 196709.

It is an arithmetic number, because the mean of its divisors is an integer number (127351224).

Almost surely, 2^1400430999 is an apocalyptic number.

1400430999 is a deficient number, since it is larger than the sum of its proper divisors (637188585).

1400430999 is a wasteful number, since it uses less digits than its factorization.

1400430999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1400430999 is about 37422.3328909356. The cubic root of 1400430999 is about 1118.8037288304.

The spelling of 1400430999 in words is "one billion, four hundred million, four hundred thirty thousand, nine hundred ninety-nine".