33428422 has 4 divisors (see below), whose sum is σ = 50142636. Its totient is φ = 16714210.

The previous prime is 33428399. The next prime is 33428441. The reversal of 33428422 is 22482433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22482433 = 3673 ⋅6121.

It is a super-2 number, since 2×33428422² = 2234918794820168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8357104 + ... + 8357107.

It is an arithmetic number, because the mean of its divisors is an integer number (12535659).

Almost surely, 2^33428422 is an apocalyptic number.

33428422 is a deficient number, since it is larger than the sum of its proper divisors (16714214).

33428422 is a wasteful number, since it uses less digits than its factorization.

33428422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16714213.

The product of its digits is 9216, while the sum is 28.

The square root of 33428422 is about 5781.7317474957. The cubic root of 33428422 is about 322.1355279959.

The spelling of 33428422 in words is "thirty-three million, four hundred twenty-eight thousand, four hundred twenty-two".