2051604234 has 32 divisors (see below), whose sum is σ = 4827306240. Its totient is φ = 643640256.

The previous prime is 2051604229. The next prime is 2051604239. The reversal of 2051604234 is 4324061502.

2051604234 is a `hidden beast` number, since 2 + 0 + 51 + 604 + 2 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2051604229) and next prime (2051604239).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2051604198 and 2051604207.

It is not an unprimeable number, because it can be changed into a prime (2051604239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116514 + ... + 1118349.

It is an arithmetic number, because the mean of its divisors is an integer number (150853320).

Almost surely, 2^2051604234 is an apocalyptic number.

2051604234 is an abundant number, since it is smaller than the sum of its proper divisors (2775702006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051604234 is a wasteful number, since it uses less digits than its factorization.

2051604234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234891 (or 2234885 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2051604234 is about 45294.6380270336. The cubic root of 2051604234 is about 1270.6653743631.

Adding to 2051604234 its reverse (4324061502), we get a palindrome (6375665736).

The spelling of 2051604234 in words is "two billion, fifty-one million, six hundred four thousand, two hundred thirty-four".