374129281 has 4 divisors (see below), whose sum is σ = 376292052. Its totient is φ = 371966512.

The previous prime is 374129263. The next prime is 374129303. The reversal of 374129281 is 182921473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 303317056 + 70812225 = 17416^2 + 8415^2 .

It is a cyclic number.

It is not a de Polignac number, because 374129281 - 2¹⁹ = 373604993 is a prime.

It is a super-2 number, since 2×374129281² = 279945437803153922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 374129281.

It is not an unprimeable number, because it can be changed into a prime (374129221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081126 + ... + 1081471.

It is an arithmetic number, because the mean of its divisors is an integer number (94073013).

Almost surely, 2^374129281 is an apocalyptic number.

It is an amenable number.

374129281 is a deficient number, since it is larger than the sum of its proper divisors (2162771).

374129281 is a wasteful number, since it uses less digits than its factorization.

374129281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162770.

The product of its digits is 24192, while the sum is 37.

The square root of 374129281 is about 19342.4217976964. The cubic root of 374129281 is about 720.5662219051.

The spelling of 374129281 in words is "three hundred seventy-four million, one hundred twenty-nine thousand, two hundred eighty-one".