140033420 has 96 divisors (see below), whose sum is σ = 334756800. Its totient is φ = 48881664.

The previous prime is 140033393. The next prime is 140033423. The reversal of 140033420 is 24330041.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (140033423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342176 + ... + 342584.

It is an arithmetic number, because the mean of its divisors is an integer number (3487050).

Almost surely, 2^140033420 is an apocalyptic number.

140033420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140033420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167378400).

140033420 is an abundant number, since it is smaller than the sum of its proper divisors (194723380).

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

140033420 is a wasteful number, since it uses less digits than its factorization.

140033420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 140033420 is about 11833.5717346877. The cubic root of 140033420 is about 519.2907243152.

Adding to 140033420 its reverse (24330041), we get a palindrome (164363461).

The spelling of 140033420 in words is "one hundred forty million, thirty-three thousand, four hundred twenty".