1678242408 has 32 divisors (see below), whose sum is σ = 4198963200. Its totient is φ = 558966528.

The previous prime is 1678242367. The next prime is 1678242413. The reversal of 1678242408 is 8042428761.

It is a self number, because there is not a number n which added to its sum of digits gives 1678242408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3360 + ... + 58032.

It is an arithmetic number, because the mean of its divisors is an integer number (131217600).

Almost surely, 2^1678242408 is an apocalyptic number.

It is an amenable number.

1678242408 is an abundant number, since it is smaller than the sum of its proper divisors (2520720792).

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

1678242408 is a wasteful number, since it uses less digits than its factorization.

1678242408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55961 (or 55957 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 1678242408 is about 40966.3570262234. The cubic root of 1678242408 is about 1188.3696828163.

The spelling of 1678242408 in words is "one billion, six hundred seventy-eight million, two hundred forty-two thousand, four hundred eight".