1387294274 has 8 divisors (see below), whose sum is σ = 2081231820. Its totient is φ = 693550336.

The previous prime is 1387294211. The next prime is 1387294283. The reversal of 1387294274 is 4724927831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1221013249 + 166281025 = 34943^2 + 12895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28919 + ... + 60090.

Almost surely, 2^1387294274 is an apocalyptic number.

1387294274 is a deficient number, since it is larger than the sum of its proper divisors (693937546).

1387294274 is an equidigital number, since it uses as much as digits as its factorization.

1387294274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96804.

The product of its digits is 677376, while the sum is 47.

The square root of 1387294274 is about 37246.3994769964. The cubic root of 1387294274 is about 1115.2944248520.

The spelling of 1387294274 in words is "one billion, three hundred eighty-seven million, two hundred ninety-four thousand, two hundred seventy-four".