1376423720 has 48 divisors (see below), whose sum is σ = 3602583540. Its totient is φ = 471916032.

The previous prime is 1376423663. The next prime is 1376423743. The reversal of 1376423720 is 273246731.

It can be written as a sum of positive squares in 2 ways, for example, as 1116762724 + 259660996 = 33418^2 + 16114^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349169 + ... + 353088.

Almost surely, 2^1376423720 is an apocalyptic number.

1376423720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376423720 is an abundant number, since it is smaller than the sum of its proper divisors (2226159820).

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

1376423720 is a wasteful number, since it uses less digits than its factorization.

1376423720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702282 (or 702271 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 1376423720 is about 37100.1849051996. The cubic root of 1376423720 is about 1112.3737098573.

The spelling of 1376423720 in words is "one billion, three hundred seventy-six million, four hundred twenty-three thousand, seven hundred twenty".