1373779344 has 80 divisors (see below), whose sum is σ = 4269409280. Its totient is φ = 371848320.

The previous prime is 1373779343. The next prime is 1373779357. The reversal of 1373779344 is 4439773731.

It is a super-3 number, since 3×1373779344³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1373779293 and 1373779302.

It is not an unprimeable number, because it can be changed into a prime (1373779343) 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 15 ways as a sum of consecutive naturals, for example, 101212 + ... + 113979.

It is an arithmetic number, because the mean of its divisors is an integer number (53367616).

Almost surely, 2^1373779344 is an apocalyptic number.

1373779344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1373779344 is an abundant number, since it is smaller than the sum of its proper divisors (2895629936).

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

1373779344 is a wasteful number, since it uses less digits than its factorization.

1373779344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215228 (or 215222 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 48.

The square root of 1373779344 is about 37064.5294587696. The cubic root of 1373779344 is about 1111.6608915432.

The spelling of 1373779344 in words is "one billion, three hundred seventy-three million, seven hundred seventy-nine thousand, three hundred forty-four".