39850965 has 144 divisors (see below), whose sum is σ = 92192256. Its totient is φ = 15724800.

The previous prime is 39850963. The next prime is 39850969. The reversal of 39850965 is 56905893.

It is not a de Polignac number, because 39850965 - 2¹ = 39850963 is a prime.

It is a super-2 number, since 2×39850965² = 3176198822862450, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39850965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39850963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 751879 + ... + 751931.

It is an arithmetic number, because the mean of its divisors is an integer number (640224).

Almost surely, 2^39850965 is an apocalyptic number.

39850965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39850965 is an abundant number, since it is smaller than the sum of its proper divisors (52341291).

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

39850965 is a wasteful number, since it uses less digits than its factorization.

39850965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 39850965 is about 6312.7620737677. The cubic root of 39850965 is about 341.5699169513.

The spelling of 39850965 in words is "thirty-nine million, eight hundred fifty thousand, nine hundred sixty-five".