1374384491 has 4 divisors (see below), whose sum is σ = 1380386400. Its totient is φ = 1368382584.

The previous prime is 1374384469. The next prime is 1374384503. The reversal of 1374384491 is 1944834731.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1374384491 - 2¹⁰ = 1374383467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374386491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000611 + ... + 3001068.

It is an arithmetic number, because the mean of its divisors is an integer number (345096600).

Almost surely, 2^1374384491 is an apocalyptic number.

1374384491 is a deficient number, since it is larger than the sum of its proper divisors (6001909).

1374384491 is an equidigital number, since it uses as much as digits as its factorization.

1374384491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001908.

The product of its digits is 290304, while the sum is 44.

The square root of 1374384491 is about 37072.6919848020. The cubic root of 1374384491 is about 1111.8240957006.

The spelling of 1374384491 in words is "one billion, three hundred seventy-four million, three hundred eighty-four thousand, four hundred ninety-one".