1361236620 has 24 divisors (see below), whose sum is σ = 3811462704. Its totient is φ = 362996416.

The previous prime is 1361236537. The next prime is 1361236633. The reversal of 1361236620 is 266321631.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11343579 + ... + 11343698.

It is an arithmetic number, because the mean of its divisors is an integer number (158810946).

Almost surely, 2^1361236620 is an apocalyptic number.

1361236620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361236620 is an abundant number, since it is smaller than the sum of its proper divisors (2450226084).

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

1361236620 is a wasteful number, since it uses less digits than its factorization.

1361236620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22687289 (or 22687287 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1361236620 is about 36894.9403035159. The cubic root of 1361236620 is about 1108.2673561017.

The spelling of 1361236620 in words is "one billion, three hundred sixty-one million, two hundred thirty-six thousand, six hundred twenty".