33418961 has 4 divisors (see below), whose sum is σ = 34497024. Its totient is φ = 32340900.

The previous prime is 33418943. The next prime is 33418963. The reversal of 33418961 is 16981433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33418961 - 2⁶ = 33418897 is a prime.

It is a super-2 number, since 2×33418961² = 2233653908639042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33418963) 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, 538985 + ... + 539046.

It is an arithmetic number, because the mean of its divisors is an integer number (8624256).

Almost surely, 2^33418961 is an apocalyptic number.

33418961 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33418961 is a deficient number, since it is larger than the sum of its proper divisors (1078063).

33418961 is a wasteful number, since it uses less digits than its factorization.

33418961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078062.

The product of its digits is 15552, while the sum is 35.

The square root of 33418961 is about 5780.9135091264. The cubic root of 33418961 is about 322.1051345800.

The spelling of 33418961 in words is "thirty-three million, four hundred eighteen thousand, nine hundred sixty-one".