2051711400 has 48 divisors (see below), whose sum is σ = 6360307200. Its totient is φ = 547122880.

The previous prime is 2051711377. The next prime is 2051711407. The reversal of 2051711400 is 41171502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2051711407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1709160 + ... + 1710359.

It is an arithmetic number, because the mean of its divisors is an integer number (132506400).

Almost surely, 2^2051711400 is an apocalyptic number.

2051711400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051711400 is an abundant number, since it is smaller than the sum of its proper divisors (4308595800).

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

2051711400 is a wasteful number, since it uses less digits than its factorization.

2051711400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419538 (or 3419529 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 2051711400 is about 45295.8209992931. The cubic root of 2051711400 is about 1270.6874984733.

Adding to 2051711400 its reverse (41171502), we get a palindrome (2092882902).

The spelling of 2051711400 in words is "two billion, fifty-one million, seven hundred eleven thousand, four hundred".