1082447640 has 96 divisors (see below), whose sum is σ = 3522093120. Its totient is φ = 288313344.

The previous prime is 1082447609. The next prime is 1082447671. The reversal of 1082447640 is 467442801.

1082447640 is a `hidden beast` number, since 1 + 0 + 8 + 2 + 4 + 4 + 7 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (1082447609) and next prime (1082447671).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1082447595 and 1082447604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 511224 + ... + 513336.

It is an arithmetic number, because the mean of its divisors is an integer number (36688470).

Almost surely, 2^1082447640 is an apocalyptic number.

1082447640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1082447640 is an abundant number, since it is smaller than the sum of its proper divisors (2439645480).

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

1082447640 is a wasteful number, since it uses less digits than its factorization.

1082447640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1082447640 is about 32900.5720315012. The cubic root of 1082447640 is about 1026.7600583134.

The spelling of 1082447640 in words is "one billion, eighty-two million, four hundred forty-seven thousand, six hundred forty".