1807282840 has 32 divisors (see below), whose sum is σ = 4436058960. Its totient is φ = 657193600.

The previous prime is 1807282783. The next prime is 1807282843. The reversal of 1807282840 is 482827081.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1807282793 and 1807282802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1807282843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053291 + ... + 2054170.

Almost surely, 2^1807282840 is an apocalyptic number.

1807282840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1807282840 is an abundant number, since it is smaller than the sum of its proper divisors (2628776120).

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

1807282840 is a wasteful number, since it uses less digits than its factorization.

1807282840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107483 (or 4107479 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 1807282840 is about 42512.1493222820. The cubic root of 1807282840 is about 1218.0787730938.

The spelling of 1807282840 in words is "one billion, eight hundred seven million, two hundred eighty-two thousand, eight hundred forty".