2051245420 has 48 divisors (see below), whose sum is σ = 4973774400. Its totient is φ = 696029184.

The previous prime is 2051245373. The next prime is 2051245421. The reversal of 2051245420 is 245421502.

It is not an unprimeable number, because it can be changed into a prime (2051245421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61945 + ... + 89104.

It is an arithmetic number, because the mean of its divisors is an integer number (103620300).

Almost surely, 2^2051245420 is an apocalyptic number.

2051245420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051245420 is an abundant number, since it is smaller than the sum of its proper divisors (2922528980).

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

2051245420 is a wasteful number, since it uses less digits than its factorization.

2051245420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151162 (or 151160 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2051245420 is about 45290.6769655743. The cubic root of 2051245420 is about 1270.5912926436.

Adding to 2051245420 its reverse (245421502), we get a palindrome (2296666922).

The spelling of 2051245420 in words is "two billion, fifty-one million, two hundred forty-five thousand, four hundred twenty".