33010140 has 24 divisors (see below), whose sum is σ = 92428560. Its totient is φ = 8802688.

The previous prime is 33010139. The next prime is 33010147. The reversal of 33010140 is 4101033.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33010147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275025 + ... + 275144.

It is an arithmetic number, because the mean of its divisors is an integer number (3851190).

Almost surely, 2^33010140 is an apocalyptic number.

33010140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33010140 is an abundant number, since it is smaller than the sum of its proper divisors (59418420).

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

33010140 is a wasteful number, since it uses less digits than its factorization.

33010140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550181 (or 550179 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 33010140 is about 5745.4451524664. The cubic root of 33010140 is about 320.7862825626.

Adding to 33010140 its reverse (4101033), we get a palindrome (37111173).

The spelling of 33010140 in words is "thirty-three million, ten thousand, one hundred forty".