1408649986 has 8 divisors (see below), whose sum is σ = 2162114064. Its totient is φ = 687945300.

The previous prime is 1408649969. The next prime is 1408649989. The reversal of 1408649986 is 6899468041.

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

It is not an unprimeable number, because it can be changed into a prime (1408649989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8189740 + ... + 8189911.

It is an arithmetic number, because the mean of its divisors is an integer number (270264258).

Almost surely, 2^1408649986 is an apocalyptic number.

1408649986 is a deficient number, since it is larger than the sum of its proper divisors (753464078).

1408649986 is a wasteful number, since it uses less digits than its factorization.

1408649986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16379696.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 1408649986 is about 37531.9861717975. The cubic root of 1408649986 is about 1120.9881760264.

The spelling of 1408649986 in words is "one billion, four hundred eight million, six hundred forty-nine thousand, nine hundred eighty-six".