33021420140 has 48 divisors (see below), whose sum is σ = 72644342400. Its totient is φ = 12591651072.

The previous prime is 33021420119. The next prime is 33021420161. The reversal of 33021420140 is 4102412033.

It is an interprime number because it is at equal distance from previous prime (33021420119) and next prime (33021420161).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314519 + ... + 406158.

It is an arithmetic number, because the mean of its divisors is an integer number (1513423800).

Almost surely, 2^33021420140 is an apocalyptic number.

It is an amenable number.

33021420140 is an abundant number, since it is smaller than the sum of its proper divisors (39622922260).

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

33021420140 is a wasteful number, since it uses less digits than its factorization.

33021420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720794 (or 720792 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 33021420140 its reverse (4102412033), we get a palindrome (37123832173).

The spelling of 33021420140 in words is "thirty-three billion, twenty-one million, four hundred twenty thousand, one hundred forty".