1401039379 has 4 divisors (see below), whose sum is σ = 1420772400. Its totient is φ = 1381306360.

The previous prime is 1401039361. The next prime is 1401039397. The reversal of 1401039379 is 9739301041.

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

It is an interprime number because it is at equal distance from previous prime (1401039361) and next prime (1401039397).

It is a cyclic number.

It is not a de Polignac number, because 1401039379 - 2¹⁹ = 1400515091 is a prime.

It is a super-2 number, since 2×1401039379² = 3925822683017411282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401039349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9866404 + ... + 9866545.

It is an arithmetic number, because the mean of its divisors is an integer number (355193100).

Almost surely, 2^1401039379 is an apocalyptic number.

1401039379 is a deficient number, since it is larger than the sum of its proper divisors (19733021).

1401039379 is an equidigital number, since it uses as much as digits as its factorization.

1401039379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19733020.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 1401039379 is about 37430.4605769152. The cubic root of 1401039379 is about 1118.9657168832.

The spelling of 1401039379 in words is "one billion, four hundred one million, thirty-nine thousand, three hundred seventy-nine".