1968150420 has 96 divisors (see below), whose sum is σ = 6265607040. Its totient is φ = 512628480.

The previous prime is 1968150391. The next prime is 1968150479. The reversal of 1968150420 is 240518691.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19161 + ... + 65600.

It is an arithmetic number, because the mean of its divisors is an integer number (65266740).

Almost surely, 2^1968150420 is an apocalyptic number.

1968150420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968150420 is an abundant number, since it is smaller than the sum of its proper divisors (4297456620).

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

1968150420 is a wasteful number, since it uses less digits than its factorization.

1968150420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84822 (or 84814 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1968150420 is about 44363.8413575741. The cubic root of 1968150420 is about 1253.1972380958.

The spelling of 1968150420 in words is "one billion, nine hundred sixty-eight million, one hundred fifty thousand, four hundred twenty".