1823247140 has 48 divisors (see below), whose sum is σ = 4498200000. Its totient is φ = 611998080.

The previous prime is 1823247137. The next prime is 1823247149. The reversal of 1823247140 is 417423281.

It is a junction number, because it is equal to n+sod(n) for n = 1823247097 and 1823247106.

It is not an unprimeable number, because it can be changed into a prime (1823247149) 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, 315890 + ... + 321609.

It is an arithmetic number, because the mean of its divisors is an integer number (93712500).

Almost surely, 2^1823247140 is an apocalyptic number.

1823247140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1823247140 is an abundant number, since it is smaller than the sum of its proper divisors (2674952860).

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

1823247140 is a wasteful number, since it uses less digits than its factorization.

1823247140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637532 (or 637530 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1823247140 is about 42699.4981235143. The cubic root of 1823247140 is about 1221.6548223571.

The spelling of 1823247140 in words is "one billion, eight hundred twenty-three million, two hundred forty-seven thousand, one hundred forty".