2254019391 has 24 divisors (see below), whose sum is σ = 3601022880. Its totient is φ = 1349597376.

The previous prime is 2254019377. The next prime is 2254019423. The reversal of 2254019391 is 1939104522.

2254019391 is a `hidden beast` number, since 2 + 254 + 0 + 19 + 391 = 666.

It is not a de Polignac number, because 2254019391 - 2⁷ = 2254019263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2254019311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256011 + ... + 264668.

It is an arithmetic number, because the mean of its divisors is an integer number (150042620).

Almost surely, 2^2254019391 is an apocalyptic number.

2254019391 is a deficient number, since it is larger than the sum of its proper divisors (1347003489).

2254019391 is a wasteful number, since it uses less digits than its factorization.

2254019391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520735 (or 520732 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2254019391 is about 47476.5140990785. The cubic root of 2254019391 is about 1311.1505132591.

The spelling of 2254019391 in words is "two billion, two hundred fifty-four million, nineteen thousand, three hundred ninety-one".