1680953942 has 32 divisors (see below), whose sum is σ = 2708398080. Its totient is φ = 780642720.

The previous prime is 1680953929. The next prime is 1680953983. The reversal of 1680953942 is 2493590861.

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 15 ways as a sum of consecutive naturals, for example, 217883 + ... + 225465.

It is an arithmetic number, because the mean of its divisors is an integer number (84637440).

Almost surely, 2^1680953942 is an apocalyptic number.

1680953942 is a deficient number, since it is larger than the sum of its proper divisors (1027444138).

1680953942 is a wasteful number, since it uses less digits than its factorization.

1680953942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1680953942 is about 40999.4383132257. The cubic root of 1680953942 is about 1189.0093542002.

The spelling of 1680953942 in words is "one billion, six hundred eighty million, nine hundred fifty-three thousand, nine hundred forty-two".