2051510740 has 48 divisors (see below), whose sum is σ = 4358914560. Its totient is φ = 810973440.

The previous prime is 2051510729. The next prime is 2051510749. The reversal of 2051510740 is 470151502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051510749) 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, 1665925 + ... + 1667155.

It is an arithmetic number, because the mean of its divisors is an integer number (90810720).

Almost surely, 2^2051510740 is an apocalyptic number.

2051510740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051510740 is an abundant number, since it is smaller than the sum of its proper divisors (2307403820).

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

2051510740 is a wasteful number, since it uses less digits than its factorization.

2051510740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 2051510740 is about 45293.6059505092. The cubic root of 2051510740 is about 1270.6460721684.

The spelling of 2051510740 in words is "two billion, fifty-one million, five hundred ten thousand, seven hundred forty".