1361886408 has 48 divisors (see below), whose sum is σ = 3882574800. Its totient is φ = 430068960.

The previous prime is 1361886403. The next prime is 1361886437. The reversal of 1361886408 is 8046881631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1361886403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496398 + ... + 499133.

It is an arithmetic number, because the mean of its divisors is an integer number (80886975).

Almost surely, 2^1361886408 is an apocalyptic number.

1361886408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1361886408 is an abundant number, since it is smaller than the sum of its proper divisors (2520688392).

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

1361886408 is a wasteful number, since it uses less digits than its factorization.

1361886408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995562 (or 995555 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1361886408 is about 36903.7451757948. The cubic root of 1361886408 is about 1108.4436723184.

The spelling of 1361886408 in words is "one billion, three hundred sixty-one million, eight hundred eighty-six thousand, four hundred eight".