1826995860 has 72 divisors (see below), whose sum is σ = 5646480840. Its totient is φ = 478003968.

The previous prime is 1826995837. The next prime is 1826995861. The reversal of 1826995860 is 685996281.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 377214084 + 1449781776 = 19422^2 + 38076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1826995797 and 1826995806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1826995861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86215 + ... + 105294.

It is an arithmetic number, because the mean of its divisors is an integer number (78423345).

Almost surely, 2^1826995860 is an apocalyptic number.

1826995860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1826995860 is an abundant number, since it is smaller than the sum of its proper divisors (3819484980).

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

1826995860 is a wasteful number, since it uses less digits than its factorization.

1826995860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191577 (or 191572 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 1826995860 is about 42743.3721177915. The cubic root of 1826995860 is about 1222.4915176247.

The spelling of 1826995860 in words is "one billion, eight hundred twenty-six million, nine hundred ninety-five thousand, eight hundred sixty".