1426178049 has 4 divisors (see below), whose sum is σ = 1901570736. Its totient is φ = 950785364.

The previous prime is 1426178023. The next prime is 1426178051. The reversal of 1426178049 is 9408716241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1426178049 - 2²¹ = 1424080897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1426178049.

It is not an unprimeable number, because it can be changed into a prime (1426178009) 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, 237696339 + ... + 237696344.

It is an arithmetic number, because the mean of its divisors is an integer number (475392684).

Almost surely, 2^1426178049 is an apocalyptic number.

It is an amenable number.

1426178049 is a deficient number, since it is larger than the sum of its proper divisors (475392687).

1426178049 is an equidigital number, since it uses as much as digits as its factorization.

1426178049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475392686.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1426178049 is about 37764.7725929867. The cubic root of 1426178049 is about 1125.6185698480.

The spelling of 1426178049 in words is "one billion, four hundred twenty-six million, one hundred seventy-eight thousand, forty-nine".