1986450366 has 8 divisors (see below), whose sum is σ = 3972900744. Its totient is φ = 662150120.

The previous prime is 1986450359. The next prime is 1986450419. The reversal of 1986450366 is 6630546891.

It is a sphenic number, since it is the product of 3 distinct primes.

1986450366 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165537525 + ... + 165537536.

It is an arithmetic number, because the mean of its divisors is an integer number (496612593).

Almost surely, 2^1986450366 is an apocalyptic number.

1986450366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1986450366 is a wasteful number, since it uses less digits than its factorization.

1986450366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331075066.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 1986450366 is about 44569.6125852581. The cubic root of 1986450366 is about 1257.0693554146.

The spelling of 1986450366 in words is "one billion, nine hundred eighty-six million, four hundred fifty thousand, three hundred sixty-six".