966649140 has 72 divisors (see below), whose sum is σ = 3040783200. Its totient is φ = 257771808.

The previous prime is 966649093. The next prime is 966649147. The reversal of 966649140 is 41946669.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966649147) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 94590 + ... + 104309.

It is an arithmetic number, because the mean of its divisors is an integer number (42233100).

Almost surely, 2^966649140 is an apocalyptic number.

966649140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

966649140 is an abundant number, since it is smaller than the sum of its proper divisors (2074134060).

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

966649140 is a wasteful number, since it uses less digits than its factorization.

966649140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198923 (or 198909 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 966649140 is about 31090.9816506330. The cubic root of 966649140 is about 988.7571179796.

The spelling of 966649140 in words is "nine hundred sixty-six million, six hundred forty-nine thousand, one hundred forty".