1400432379 has 8 divisors (see below), whose sum is σ = 1867429200. Its totient is φ = 933528576.

The previous prime is 1400432377. The next prime is 1400432381. The reversal of 1400432379 is 9732340041.

It is an interprime number because it is at equal distance from previous prime (1400432377) and next prime (1400432381).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1400432379 - 2¹ = 1400432377 is a prime.

It is a super-2 number, since 2×1400432379² = 3922421696303199282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400432377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28047 + ... + 59895.

It is an arithmetic number, because the mean of its divisors is an integer number (233428650).

Almost surely, 2^1400432379 is an apocalyptic number.

1400432379 is a deficient number, since it is larger than the sum of its proper divisors (466996821).

1400432379 is a wasteful number, since it uses less digits than its factorization.

1400432379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46509.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 1400432379 is about 37422.3513291188. The cubic root of 1400432379 is about 1118.8040963241.

The spelling of 1400432379 in words is "one billion, four hundred million, four hundred thirty-two thousand, three hundred seventy-nine".