1409428679 has 8 divisors (see below), whose sum is σ = 1449423360. Its totient is φ = 1369534176.

The previous prime is 1409428667. The next prime is 1409428687. The reversal of 1409428679 is 9768249041.

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 1409428679 - 2⁴ = 1409428663 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 (1409428879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3962 + ... + 53240.

It is an arithmetic number, because the mean of its divisors is an integer number (181177920).

Almost surely, 2^1409428679 is an apocalyptic number.

1409428679 is a deficient number, since it is larger than the sum of its proper divisors (39994681).

1409428679 is an equidigital number, since it uses as much as digits as its factorization.

1409428679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50089.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1409428679 is about 37542.3584634743. The cubic root of 1409428679 is about 1121.1946964202.

The spelling of 1409428679 in words is "one billion, four hundred nine million, four hundred twenty-eight thousand, six hundred seventy-nine".