733421340 has 72 divisors (see below), whose sum is σ = 2226959280. Its totient is φ = 195381504.

The previous prime is 733421279. The next prime is 733421341. The reversal of 733421340 is 43124337.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733421341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297031 + ... + 299489.

It is an arithmetic number, because the mean of its divisors is an integer number (30929990).

Almost surely, 2^733421340 is an apocalyptic number.

It is an amenable number.

733421340 is an abundant number, since it is smaller than the sum of its proper divisors (1493537940).

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

733421340 is a wasteful number, since it uses less digits than its factorization.

733421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131 (or 4126 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 733421340 is about 27081.7528974769. The cubic root of 733421340 is about 901.8158154778.

Adding to 733421340 its reverse (43124337), we get a palindrome (776545677).

The spelling of 733421340 in words is "seven hundred thirty-three million, four hundred twenty-one thousand, three hundred forty".