1959682440 has 64 divisors (see below), whose sum is σ = 5882860800. Its totient is φ = 522243072.

The previous prime is 1959682433. The next prime is 1959682447. The reversal of 1959682440 is 442869591.

It is an interprime number because it is at equal distance from previous prime (1959682433) and next prime (1959682447).

It is a self number, because there is not a number n which added to its sum of digits gives 1959682440.

It is not an unprimeable number, because it can be changed into a prime (1959682447) 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, 220401 + ... + 229119.

It is an arithmetic number, because the mean of its divisors is an integer number (91919700).

Almost surely, 2^1959682440 is an apocalyptic number.

1959682440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1959682440 is an abundant number, since it is smaller than the sum of its proper divisors (3923178360).

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

1959682440 is a wasteful number, since it uses less digits than its factorization.

1959682440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606 (or 10602 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 1959682440 is about 44268.3006224544. The cubic root of 1959682440 is about 1251.3973578641.

The spelling of 1959682440 in words is "one billion, nine hundred fifty-nine million, six hundred eighty-two thousand, four hundred forty".