33626428 has 72 divisors (see below), whose sum is σ = 71048880. Its totient is φ = 13789440.

The previous prime is 33626419. The next prime is 33626431. The reversal of 33626428 is 82462633.

It is a super-2 number, since 2×33626428² = 2261473320078368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33626393 and 33626402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460600 + ... + 460672.

It is an arithmetic number, because the mean of its divisors is an integer number (986790).

Almost surely, 2^33626428 is an apocalyptic number.

33626428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

33626428 is an abundant number, since it is smaller than the sum of its proper divisors (37422452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33626428 is a wasteful number, since it uses less digits than its factorization.

33626428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 134 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 33626428 is about 5798.8298819676. The cubic root of 33626428 is about 322.7703095973.

The spelling of 33626428 in words is "thirty-three million, six hundred twenty-six thousand, four hundred twenty-eight".