1400831381 has 8 divisors (see below), whose sum is σ = 1435814400. Its totient is φ = 1366064208.

The previous prime is 1400831351. The next prime is 1400831429. The reversal of 1400831381 is 1831380041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400831381 - 2¹⁰ = 1400830357 is a prime.

It is a super-2 number, since 2×1400831381² = 3924657115988734322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400831351) 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, 40781 + ... + 66818.

It is an arithmetic number, because the mean of its divisors is an integer number (179476800).

Almost surely, 2^1400831381 is an apocalyptic number.

It is an amenable number.

1400831381 is a deficient number, since it is larger than the sum of its proper divisors (34983019).

1400831381 is a wasteful number, since it uses less digits than its factorization.

1400831381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107923.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1400831381 is about 37427.6820147869. The cubic root of 1400831381 is about 1118.9103403408.

The spelling of 1400831381 in words is "one billion, four hundred million, eight hundred thirty-one thousand, three hundred eighty-one".