1838051240 has 32 divisors (see below), whose sum is σ = 4140067680. Its totient is φ = 734428992.

The previous prime is 1838051239. The next prime is 1838051251. The reversal of 1838051240 is 421508381.

It is a junction number, because it is equal to n+sod(n) for n = 1838051197 and 1838051206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13619 + ... + 62141.

It is an arithmetic number, because the mean of its divisors is an integer number (129377115).

Almost surely, 2^1838051240 is an apocalyptic number.

1838051240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1838051240 is an abundant number, since it is smaller than the sum of its proper divisors (2302016440).

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

1838051240 is a wasteful number, since it uses less digits than its factorization.

1838051240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49481 (or 49477 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1838051240 is about 42872.4998104846. The cubic root of 1838051240 is about 1224.9523768797.

The spelling of 1838051240 in words is "one billion, eight hundred thirty-eight million, fifty-one thousand, two hundred forty".