1680012190 has 16 divisors (see below), whose sum is σ = 3034348128. Its totient is φ = 669710176.

The previous prime is 1680012143. The next prime is 1680012221. The reversal of 1680012190 is 912100861.

It is a happy number.

It is a super-2 number, since 2×1680012190² = 5644881917097192200, which contains 22 as substring.

It is a congruent number.

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, 283762 + ... + 289621.

It is an arithmetic number, because the mean of its divisors is an integer number (189646758).

Almost surely, 2^1680012190 is an apocalyptic number.

1680012190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680012190 is a deficient number, since it is larger than the sum of its proper divisors (1354335938).

1680012190 is a wasteful number, since it uses less digits than its factorization.

1680012190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573683.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1680012190 is about 40987.9517663423. The cubic root of 1680012190 is about 1188.7872658000.

The spelling of 1680012190 in words is "one billion, six hundred eighty million, twelve thousand, one hundred ninety".