400379 has 6 divisors (see below), whose sum is σ = 465804. Its totient is φ = 343140.

The previous prime is 400339. The next prime is 400381. The reversal of 400379 is 973004.

It is not a de Polignac number, because 400379 - 2⁸ = 400123 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400379.

It is not an unprimeable number, because it can be changed into a prime (400339) 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 5 ways as a sum of consecutive naturals, for example, 4037 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (77634).

2⁴⁰⁰³⁷⁹ is an apocalyptic number.

400379 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

400379 is a deficient number, since it is larger than the sum of its proper divisors (65425).

400379 is an equidigital number, since it uses as much as digits as its factorization.

400379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185 (or 8178 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 400379 is about 632.7550869017. The cubic root of 400379 is about 73.7038934259.

The spelling of 400379 in words is "four hundred thousand, three hundred seventy-nine".