1678952340 has 96 divisors (see below), whose sum is σ = 5625231360. Its totient is φ = 413278848.

The previous prime is 1678952299. The next prime is 1678952357. The reversal of 1678952340 is 432598761.

1678952340 is a `hidden beast` number, since 1 + 6 + 7 + 89 + 523 + 40 = 666.

1678952340 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

1678952340 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112564 + ... + 126603.

It is an arithmetic number, because the mean of its divisors is an integer number (58596160).

It is a 1-persistent number, because it is pandigital, but 2⋅1678952340 = 3357904680 is not.

Almost surely, 2^1678952340 is an apocalyptic number.

1678952340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1678952340 is an abundant number, since it is smaller than the sum of its proper divisors (3946279020).

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

1678952340 is a wasteful number, since it uses less digits than its factorization.

1678952340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239198 (or 239190 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1678952340 is about 40975.0209273894. The cubic root of 1678952340 is about 1188.5372276889.

The spelling of 1678952340 in words is "one billion, six hundred seventy-eight million, nine hundred fifty-two thousand, three hundred forty".