1426016249 has 4 divisors (see below), whose sum is σ = 1629732864. Its totient is φ = 1222299636.

The previous prime is 1426016239. The next prime is 1426016257. The reversal of 1426016249 is 9426106241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9426106241 = 97 ⋅97176353.

It is a cyclic number.

It is not a de Polignac number, because 1426016249 - 2⁴ = 1426016233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1426016239) 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, 101858297 + ... + 101858310.

It is an arithmetic number, because the mean of its divisors is an integer number (407433216).

Almost surely, 2^1426016249 is an apocalyptic number.

It is an amenable number.

1426016249 is a deficient number, since it is larger than the sum of its proper divisors (203716615).

1426016249 is an equidigital number, since it uses as much as digits as its factorization.

1426016249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203716614.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1426016249 is about 37762.6303241710. The cubic root of 1426016249 is about 1125.5760010695.

The spelling of 1426016249 in words is "one billion, four hundred twenty-six million, sixteen thousand, two hundred forty-nine".