1427449943 has 4 divisors (see below), whose sum is σ = 1489513008. Its totient is φ = 1365386880.

The previous prime is 1427449937. The next prime is 1427449979. The reversal of 1427449943 is 3499447241.

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 1427449943 - 2²⁰ = 1426401367 is a prime.

It is a super-2 number, since 2×1427449943² = 4075226679541406498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427449913) 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, 31031498 + ... + 31031543.

It is an arithmetic number, because the mean of its divisors is an integer number (372378252).

Almost surely, 2^1427449943 is an apocalyptic number.

1427449943 is a deficient number, since it is larger than the sum of its proper divisors (62063065).

1427449943 is an equidigital number, since it uses as much as digits as its factorization.

1427449943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62063064.

The product of its digits is 870912, while the sum is 47.

The square root of 1427449943 is about 37781.6085284891. The cubic root of 1427449943 is about 1125.9530867807.

The spelling of 1427449943 in words is "one billion, four hundred twenty-seven million, four hundred forty-nine thousand, nine hundred forty-three".