1400390395 has 4 divisors (see below), whose sum is σ = 1680468480. Its totient is φ = 1120312312.

The previous prime is 1400390377. The next prime is 1400390399. The reversal of 1400390395 is 5930930041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400390395 - 2⁵ = 1400390363 is a prime.

It is a super-2 number, since 2×1400390395² = 3922186516816512050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1400390395.

It is not an unprimeable number, because it can be changed into a prime (1400390399) 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 3 ways as a sum of consecutive naturals, for example, 140039035 + ... + 140039044.

It is an arithmetic number, because the mean of its divisors is an integer number (420117120).

Almost surely, 2^1400390395 is an apocalyptic number.

1400390395 is a deficient number, since it is larger than the sum of its proper divisors (280078085).

1400390395 is an equidigital number, since it uses as much as digits as its factorization.

1400390395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280078084.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 1400390395 is about 37421.7903767310. The cubic root of 1400390395 is about 1118.7929158864.

The spelling of 1400390395 in words is "one billion, four hundred million, three hundred ninety thousand, three hundred ninety-five".