33402461 has 8 divisors (see below), whose sum is σ = 34863480. Its totient is φ = 31962112.

The previous prime is 33402451. The next prime is 33402487. The reversal of 33402461 is 16420433.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1196836 + 32205625 = 1094^2 + 5675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(33402461) divides (33402461-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33402461 is a prime.

It is a super-2 number, since 2×33402461² = 2231448801713042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33402431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (4357935).

Almost surely, 2^33402461 is an apocalyptic number.

It is an amenable number.

33402461 is a deficient number, since it is larger than the sum of its proper divisors (1461019).

33402461 is a wasteful number, since it uses less digits than its factorization.

33402461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 33402461 is about 5779.4862228402. The cubic root of 33402461 is about 322.0521146826.

Adding to 33402461 its reverse (16420433), we get a palindrome (49822894).

The spelling of 33402461 in words is "thirty-three million, four hundred two thousand, four hundred sixty-one".