1376229285 has 48 divisors (see below), whose sum is σ = 2478542976. Its totient is φ = 732587328.

The previous prime is 1376229263. The next prime is 1376229289. The reversal of 1376229285 is 5829226731.

1376229285 is a `hidden beast` number, since 13 + 7 + 622 + 9 + 2 + 8 + 5 = 666.

It is not a de Polignac number, because 1376229285 - 2⁹ = 1376228773 is a prime.

It is a super-2 number, since 2×1376229285² = 3788014089783222450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1376229285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376229289) 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, 1077067 + ... + 1078343.

It is an arithmetic number, because the mean of its divisors is an integer number (51636312).

Almost surely, 2^1376229285 is an apocalyptic number.

1376229285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1376229285 is a deficient number, since it is larger than the sum of its proper divisors (1102313691).

1376229285 is an equidigital number, since it uses as much as digits as its factorization.

1376229285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2172 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1376229285 is about 37097.5644079231. The cubic root of 1376229285 is about 1112.3213290475.

The spelling of 1376229285 in words is "one billion, three hundred seventy-six million, two hundred twenty-nine thousand, two hundred eighty-five".