39966330 has 32 divisors (see below), whose sum is σ = 96105600. Its totient is φ = 10636992.

The previous prime is 39966317. The next prime is 39966331. The reversal of 39966330 is 3366993.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39966331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20331 + ... + 22209.

It is an arithmetic number, because the mean of its divisors is an integer number (3003300).

Almost surely, 2^39966330 is an apocalyptic number.

39966330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39966330 is an abundant number, since it is smaller than the sum of its proper divisors (56139270).

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

39966330 is a wasteful number, since it uses less digits than its factorization.

39966330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598.

The product of its (nonzero) digits is 78732, while the sum is 39.

The square root of 39966330 is about 6321.8929127280. The cubic root of 39966330 is about 341.8992042483.

The spelling of 39966330 in words is "thirty-nine million, nine hundred sixty-six thousand, three hundred thirty".