33494401 has 4 divisors (see below), whose sum is σ = 33898032. Its totient is φ = 33090772.

The previous prime is 33494387. The next prime is 33494407. The reversal of 33494401 is 10449433.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10449433 = 127 ⋅82279.

It is a de Polignac number, because none of the positive numbers 2^k-33494401 is a prime.

It is a super-2 number, since 2×33494401² = 2243749796697602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33494401.

It is not an unprimeable number, because it can be changed into a prime (33494407) 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, 201691 + ... + 201856.

It is an arithmetic number, because the mean of its divisors is an integer number (8474508).

Almost surely, 2^33494401 is an apocalyptic number.

It is an amenable number.

33494401 is a deficient number, since it is larger than the sum of its proper divisors (403631).

33494401 is an equidigital number, since it uses as much as digits as its factorization.

33494401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403630.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 33494401 is about 5787.4347512521. The cubic root of 33494401 is about 322.3473259275.

It can be divided in two parts, 3349 and 4401, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 33494401 in words is "thirty-three million, four hundred ninety-four thousand, four hundred one".