1401224679 has 6 divisors (see below), whose sum is σ = 2023991216. Its totient is φ = 934149780.

The previous prime is 1401224663. The next prime is 1401224681. The reversal of 1401224679 is 9764221041.

It is a happy number.

1401224679 is a `hidden beast` number, since 1 + 401 + 2 + 246 + 7 + 9 = 666.

It is not a de Polignac number, because 1401224679 - 2⁴ = 1401224663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401224479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77845807 + ... + 77845824.

Almost surely, 2^1401224679 is an apocalyptic number.

1401224679 is a deficient number, since it is larger than the sum of its proper divisors (622766537).

1401224679 is a wasteful number, since it uses less digits than its factorization.

1401224679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155691637 (or 155691634 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1401224679 is about 37432.9357518216. The cubic root of 1401224679 is about 1119.0150457862.

The spelling of 1401224679 in words is "one billion, four hundred one million, two hundred twenty-four thousand, six hundred seventy-nine".