33478461 has 8 divisors (see below), whose sum is σ = 49597760. Its totient is φ = 22318956.

The previous prime is 33478439. The next prime is 33478469. The reversal of 33478461 is 16487433.

It is not a de Polignac number, because 33478461 - 2¹⁵ = 33445693 is a prime.

It is a super-2 number, since 2×33478461² = 2241614701857042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33478469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619945 + ... + 619998.

It is an arithmetic number, because the mean of its divisors is an integer number (6199720).

Almost surely, 2^33478461 is an apocalyptic number.

It is an amenable number.

33478461 is a deficient number, since it is larger than the sum of its proper divisors (16119299).

33478461 is a wasteful number, since it uses less digits than its factorization.

33478461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239952 (or 1239946 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 33478461 is about 5786.0574660126. The cubic root of 33478461 is about 322.2961827361.

The spelling of 33478461 in words is "thirty-three million, four hundred seventy-eight thousand, four hundred sixty-one".