2394721287 has 24 divisors (see below), whose sum is σ = 4126959600. Its totient is φ = 1368411408.

The previous prime is 2394721267. The next prime is 2394721321. The reversal of 2394721287 is 7821274932.

It is not a de Polignac number, because 2394721287 - 2¹⁴ = 2394704903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2394721237) 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, 903712 + ... + 906357.

It is an arithmetic number, because the mean of its divisors is an integer number (171956650).

Almost surely, 2^2394721287 is an apocalyptic number.

2394721287 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2394721287 is a deficient number, since it is larger than the sum of its proper divisors (1732238313).

2394721287 is a wasteful number, since it uses less digits than its factorization.

2394721287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810092 (or 1810079 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 2394721287 is about 48935.8895597086. The cubic root of 2394721287 is about 1337.8835839511.

The spelling of 2394721287 in words is "two billion, three hundred ninety-four million, seven hundred twenty-one thousand, two hundred eighty-seven".