33426140 has 24 divisors (see below), whose sum is σ = 76576752. Its totient is φ = 12154880.

The previous prime is 33426121. The next prime is 33426143. The reversal of 33426140 is 4162433.

It is a happy number.

It is a super-2 number, since 2×33426140² = 2234613670599200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33426143) 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, 75749 + ... + 76188.

It is an arithmetic number, because the mean of its divisors is an integer number (3190698).

Almost surely, 2^33426140 is an apocalyptic number.

It is an amenable number.

33426140 is an abundant number, since it is smaller than the sum of its proper divisors (43150612).

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

33426140 is a wasteful number, since it uses less digits than its factorization.

33426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151957 (or 151955 counting only the distinct ones).

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

The square root of 33426140 is about 5781.5343984102. The cubic root of 33426140 is about 322.1281976070.

Adding to 33426140 its reverse (4162433), we get a palindrome (37588573).

The spelling of 33426140 in words is "thirty-three million, four hundred twenty-six thousand, one hundred forty".