1361393380 has 12 divisors (see below), whose sum is σ = 2858926140. Its totient is φ = 544557344.

The previous prime is 1361393359. The next prime is 1361393381. The reversal of 1361393380 is 833931631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 146313216 + 1215080164 = 12096^2 + 34858^2 .

It is not an unprimeable number, because it can be changed into a prime (1361393381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34034815 + ... + 34034854.

It is an arithmetic number, because the mean of its divisors is an integer number (238243845).

Almost surely, 2^1361393380 is an apocalyptic number.

1361393380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361393380 is an abundant number, since it is smaller than the sum of its proper divisors (1497532760).

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

1361393380 is a wasteful number, since it uses less digits than its factorization.

1361393380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68069678 (or 68069676 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1361393380 is about 36897.0646528962. The cubic root of 1361393380 is about 1108.3098971558.

The spelling of 1361393380 in words is "one billion, three hundred sixty-one million, three hundred ninety-three thousand, three hundred eighty".