1400381 has 8 divisors (see below), whose sum is σ = 1483680. Its totient is φ = 1319472.

The previous prime is 1400369. The next prime is 1400383. The reversal of 1400381 is 1830041.

It is a happy number.

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 1400381 - 2¹⁰ = 1399357 is a prime.

It is a super-2 number, since 2×1400381² = 3922133890322, 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 (1400383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686 + ... + 1808.

It is an arithmetic number, because the mean of its divisors is an integer number (185460).

2^1400381 is an apocalyptic number.

It is an amenable number.

1400381 is a deficient number, since it is larger than the sum of its proper divisors (83299).

1400381 is a wasteful number, since it uses less digits than its factorization.

1400381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1400381 is about 1183.3769475531. The cubic root of 1400381 is about 111.8790413945.

The spelling of 1400381 in words is "one million, four hundred thousand, three hundred eighty-one".