2239899461 has 2 divisors, whose sum is σ = 2239899462. Its totient is φ = 2239899460.

The previous prime is 2239899433. The next prime is 2239899469. The reversal of 2239899461 is 1649989322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986484900 + 253414561 = 44570^2 + 15919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2239899461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2239899469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119949730 + 1119949731.

It is an arithmetic number, because the mean of its divisors is an integer number (1119949731).

Almost surely, 2^2239899461 is an apocalyptic number.

It is an amenable number.

2239899461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239899461 is an equidigital number, since it uses as much as digits as its factorization.

2239899461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 53.

The square root of 2239899461 is about 47327.5761158334. The cubic root of 2239899461 is about 1308.4069482030.

The spelling of 2239899461 in words is "two billion, two hundred thirty-nine million, eight hundred ninety-nine thousand, four hundred sixty-one".