33420398 has 16 divisors (see below), whose sum is σ = 56167344. Its totient is φ = 14780160.

The previous prime is 33420391. The next prime is 33420407. The reversal of 33420398 is 89302433.

It is a happy number.

It is a super-2 number, since 2×33420398² = 2233846004956808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420391) 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, 19715 + ... + 21342.

It is an arithmetic number, because the mean of its divisors is an integer number (3510459).

Almost surely, 2^33420398 is an apocalyptic number.

33420398 is a deficient number, since it is larger than the sum of its proper divisors (22746946).

33420398 is a wasteful number, since it uses less digits than its factorization.

33420398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41107.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 33420398 is about 5781.0377961055. The cubic root of 33420398 is about 322.1097513048.

The spelling of 33420398 in words is "thirty-three million, four hundred twenty thousand, three hundred ninety-eight".