1374257426 has 4 divisors (see below), whose sum is σ = 2061386142. Its totient is φ = 687128712.

The previous prime is 1374257419. The next prime is 1374257473. The reversal of 1374257426 is 6247524731.

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

It can be written as a sum of positive squares in only one way, i.e., 800607025 + 573650401 = 28295^2 + 23951^2 .

It is a super-2 number, since 2×1374257426² = 3777166945832290952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343564355 + ... + 343564358.

Almost surely, 2^1374257426 is an apocalyptic number.

1374257426 is a deficient number, since it is larger than the sum of its proper divisors (687128716).

1374257426 is an equidigital number, since it uses as much as digits as its factorization.

1374257426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687128715.

The product of its digits is 282240, while the sum is 41.

The square root of 1374257426 is about 37070.9782174682. The cubic root of 1374257426 is about 1111.7898310816.

The spelling of 1374257426 in words is "one billion, three hundred seventy-four million, two hundred fifty-seven thousand, four hundred twenty-six".