2051383740 has 48 divisors (see below), whose sum is σ = 6564429312. Its totient is φ = 468887616.

The previous prime is 2051383723. The next prime is 2051383751. The reversal of 2051383740 is 473831502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2441704 + ... + 2442543.

It is an arithmetic number, because the mean of its divisors is an integer number (136758944).

Almost surely, 2^2051383740 is an apocalyptic number.

2051383740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051383740 is an abundant number, since it is smaller than the sum of its proper divisors (4513045572).

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

2051383740 is a wasteful number, since it uses less digits than its factorization.

2051383740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884266 (or 4884264 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2051383740 is about 45292.2039649209. The cubic root of 2051383740 is about 1270.6198515921.

The spelling of 2051383740 in words is "two billion, fifty-one million, three hundred eighty-three thousand, seven hundred forty".