1968904946 has 32 divisors (see below), whose sum is σ = 3266490240. Its totient is φ = 885862656.

The previous prime is 1968904943. The next prime is 1968904957. The reversal of 1968904946 is 6494098691.

It is a junction number, because it is equal to n+sod(n) for n = 1968904891 and 1968904900.

It is not an unprimeable number, because it can be changed into a prime (1968904943) 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, 91865 + ... + 111251.

It is an arithmetic number, because the mean of its divisors is an integer number (102077820).

Almost surely, 2^1968904946 is an apocalyptic number.

1968904946 is a deficient number, since it is larger than the sum of its proper divisors (1297585294).

1968904946 is a wasteful number, since it uses less digits than its factorization.

1968904946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 1968904946 is about 44372.3443825092. The cubic root of 1968904946 is about 1253.3573628981.

The spelling of 1968904946 in words is "one billion, nine hundred sixty-eight million, nine hundred four thousand, nine hundred forty-six".