189980462 has 16 divisors (see below), whose sum is σ = 336187392. Its totient is φ = 78793560.

The previous prime is 189980419. The next prime is 189980471. The reversal of 189980462 is 264089981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218438 + ... + 219305.

It is an arithmetic number, because the mean of its divisors is an integer number (21011712).

Almost surely, 2^189980462 is an apocalyptic number.

189980462 is a deficient number, since it is larger than the sum of its proper divisors (146206930).

189980462 is a wasteful number, since it uses less digits than its factorization.

189980462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437783.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 189980462 is about 13783.3400161209. The cubic root of 189980462 is about 574.8700016135.

The spelling of 189980462 in words is "one hundred eighty-nine million, nine hundred eighty thousand, four hundred sixty-two".