1376252280 has 192 divisors, whose sum is σ = 4835376000. Its totient is φ = 337471488.

The previous prime is 1376252279. The next prime is 1376252287. The reversal of 1376252280 is 822526731.

1376252280 is a `hidden beast` number, since 1 + 3 + 7 + 625 + 2 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376252287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1913761 + ... + 1914479.

It is an arithmetic number, because the mean of its divisors is an integer number (25184250).

Almost surely, 2^1376252280 is an apocalyptic number.

1376252280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1376252280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2417688000).

1376252280 is an abundant number, since it is smaller than the sum of its proper divisors (3459123720).

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

1376252280 is a wasteful number, since it uses less digits than its factorization.

1376252280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1376252280 is about 37097.8743326353. The cubic root of 1376252280 is about 1112.3275241601.

The spelling of 1376252280 in words is "one billion, three hundred seventy-six million, two hundred fifty-two thousand, two hundred eighty".