2084251905 has 20 divisors (see below), whose sum is σ = 3736215252. Its totient is φ = 1111600800.

The previous prime is 2084251903. The next prime is 2084251907. The reversal of 2084251905 is 5091524802.

It is an interprime number because it is at equal distance from previous prime (2084251903) and next prime (2084251907).

It can be written as a sum of positive squares in 2 ways, for example, as 1404450576 + 679801329 = 37476^2 + 26073^2 .

It is not a de Polignac number, because 2084251905 - 2¹ = 2084251903 is a prime.

It is a super-4 number, since 4×2084251905⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2084251905.

It is not an unprimeable number, because it can be changed into a prime (2084251903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2572746 + ... + 2573555.

Almost surely, 2^2084251905 is an apocalyptic number.

It is an amenable number.

2084251905 is a deficient number, since it is larger than the sum of its proper divisors (1651963347).

2084251905 is an equidigital number, since it uses as much as digits as its factorization.

2084251905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146318 (or 5146309 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 2084251905 is about 45653.6077982891. The cubic root of 2084251905 is about 1277.3700691101.

The spelling of 2084251905 in words is "two billion, eighty-four million, two hundred fifty-one thousand, nine hundred five".