1361858412 has 24 divisors (see below), whose sum is σ = 3178791616. Its totient is φ = 453792528.

The previous prime is 1361858387. The next prime is 1361858429. The reversal of 1361858412 is 2148581631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18303 + ... + 55305.

Almost surely, 2^1361858412 is an apocalyptic number.

1361858412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361858412 is an abundant number, since it is smaller than the sum of its proper divisors (1816933204).

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

1361858412 is a wasteful number, since it uses less digits than its factorization.

1361858412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40077 (or 40075 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 1361858412 is about 36903.3658627502. The cubic root of 1361858412 is about 1108.4360769220.

The spelling of 1361858412 in words is "one billion, three hundred sixty-one million, eight hundred fifty-eight thousand, four hundred twelve".