2051422004 has 12 divisors (see below), whose sum is σ = 3592757028. Its totient is φ = 1024920000.

The previous prime is 2051421997. The next prime is 2051422031. The reversal of 2051422004 is 4002241502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 744744100 + 1306677904 = 27290^2 + 36148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191897 + ... + 202304.

It is an arithmetic number, because the mean of its divisors is an integer number (299396419).

Almost surely, 2^2051422004 is an apocalyptic number.

It is an amenable number.

2051422004 is a deficient number, since it is larger than the sum of its proper divisors (1541335024).

2051422004 is a wasteful number, since it uses less digits than its factorization.

2051422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395506 (or 395504 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2051422004 is about 45292.6263756033. The cubic root of 2051422004 is about 1270.6277517386.

Adding to 2051422004 its reverse (4002241502), we get a palindrome (6053663506).

The spelling of 2051422004 in words is "two billion, fifty-one million, four hundred twenty-two thousand, four".