1363729940 has 24 divisors (see below), whose sum is σ = 3014561760. Its totient is φ = 516781728.

The previous prime is 1363729933. The next prime is 1363729943. The reversal of 1363729940 is 499273631.

It is a junction number, because it is equal to n+sod(n) for n = 1363729891 and 1363729900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363729943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794002 + ... + 1794761.

It is an arithmetic number, because the mean of its divisors is an integer number (125606740).

Almost surely, 2^1363729940 is an apocalyptic number.

1363729940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1363729940 is an abundant number, since it is smaller than the sum of its proper divisors (1650831820).

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

1363729940 is a wasteful number, since it uses less digits than its factorization.

1363729940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588791 (or 3588789 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 1363729940 is about 36928.7143020171. The cubic root of 1363729940 is about 1108.9435989923.

The spelling of 1363729940 in words is "one billion, three hundred sixty-three million, seven hundred twenty-nine thousand, nine hundred forty".