30841965 has 160 divisors (see below), whose sum is σ = 73598976. Its totient is φ = 11975040.

The previous prime is 30841933. The next prime is 30841969. The reversal of 30841965 is 56914803.

It is not a de Polignac number, because 30841965 - 2⁵ = 30841933 is a prime.

It is a super-2 number, since 2×30841965² = 1902453610122450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30841969) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 717234 + ... + 717276.

It is a vampire number, since it can be written as 3465 ⋅ 8901 (with its own digits).

Almost surely, 2^30841965 is an apocalyptic number.

30841965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30841965 is an abundant number, since it is smaller than the sum of its proper divisors (42757011).

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

30841965 is a wasteful number, since it uses less digits than its factorization.

30841965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 30841965 is about 5553.5542673139. The cubic root of 30841965 is about 313.6033403966.

The spelling of 30841965 in words is "thirty million, eight hundred forty-one thousand, nine hundred sixty-five".