1369279242 has 56 divisors (see below), whose sum is σ = 3088031040. Its totient is φ = 455158440.

The previous prime is 1369279231. The next prime is 1369279253. The reversal of 1369279242 is 2429729631.

1369279242 is a `hidden beast` number, since 136 + 9 + 279 + 242 = 666.

It is an interprime number because it is at equal distance from previous prime (1369279231) and next prime (1369279253).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 627309 + ... + 629487.

Almost surely, 2^1369279242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369279242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544015520).

1369279242 is an abundant number, since it is smaller than the sum of its proper divisors (1718751798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1369279242 is an equidigital number, since it uses as much as digits as its factorization.

1369279242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630 (or 2615 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1369279242 is about 37003.7733481330. The cubic root of 1369279242 is about 1110.4457377107.

The spelling of 1369279242 in words is "one billion, three hundred sixty-nine million, two hundred seventy-nine thousand, two hundred forty-two".