1366402442 has 8 divisors (see below), whose sum is σ = 2157477600. Its totient is φ = 647243244.

The previous prime is 1366402409. The next prime is 1366402463. The reversal of 1366402442 is 2442046631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1366402399 and 1366402408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17978942 + ... + 17979017.

It is an arithmetic number, because the mean of its divisors is an integer number (269684700).

Almost surely, 2^1366402442 is an apocalyptic number.

1366402442 is a deficient number, since it is larger than the sum of its proper divisors (791075158).

1366402442 is a wasteful number, since it uses less digits than its factorization.

1366402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35957980.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 1366402442 is about 36964.8811982400. The cubic root of 1366402442 is about 1109.6675253471.

The spelling of 1366402442 in words is "one billion, three hundred sixty-six million, four hundred two thousand, four hundred forty-two".