1368402426 has 12 divisors (see below), whose sum is σ = 2964871962. Its totient is φ = 456134136.

The previous prime is 1368402407. The next prime is 1368402461. The reversal of 1368402426 is 6242048631.

It can be written as a sum of positive squares in only one way, i.e., 811395225 + 557007201 = 28485^2 + 23601^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38011161 + ... + 38011196.

Almost surely, 2^1368402426 is an apocalyptic number.

1368402426 is an abundant number, since it is smaller than the sum of its proper divisors (1596469536).

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

1368402426 is a wasteful number, since it uses less digits than its factorization.

1368402426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76022365 (or 76022362 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1368402426 is about 36991.9237942554. The cubic root of 1368402426 is about 1110.2086629878.

The spelling of 1368402426 in words is "one billion, three hundred sixty-eight million, four hundred two thousand, four hundred twenty-six".