1379420685 has 40 divisors (see below), whose sum is σ = 2475601920. Its totient is φ = 734839776.

The previous prime is 1379420677. The next prime is 1379420737. The reversal of 1379420685 is 5860249731.

1379420685 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1379420685 - 2³ = 1379420677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

1379420685 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1379420685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 516664 + ... + 519326.

It is an arithmetic number, because the mean of its divisors is an integer number (61890048).

It is a 1-persistent number, because it is pandigital, but 2⋅1379420685 = 2758841370 is not.

Almost surely, 2^1379420685 is an apocalyptic number.

1379420685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1379420685 is a deficient number, since it is larger than the sum of its proper divisors (1096181235).

1379420685 is a wasteful number, since it uses less digits than its factorization.

1379420685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1379420685 is about 37140.5531057361. The cubic root of 1379420685 is about 1113.1804692792.

The spelling of 1379420685 in words is "one billion, three hundred seventy-nine million, four hundred twenty thousand, six hundred eighty-five".