7421023332 has 30 divisors (see below), whose sum is σ = 19400021718. Its totient is φ = 2473674336.

The previous prime is 7421023327. The next prime is 7421023339. The reversal of 7421023332 is 2333201247.

7421023332 is a `hidden beast` number, since 7 + 421 + 0 + 233 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7365758976 + 55264356 = 85824^2 + 7434^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 7421023296 and 7421023305.

It is not an unprimeable number, because it can be changed into a prime (7421023339) 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 9 ways as a sum of consecutive naturals, for example, 11451873 + ... + 11452520.

Almost surely, 2^7421023332 is an apocalyptic number.

It is an amenable number.

7421023332 is an abundant number, since it is smaller than the sum of its proper divisors (11978998386).

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

7421023332 is a wasteful number, since it uses less digits than its factorization.

7421023332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22904409 (or 22904398 counting only the distinct ones).

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

The square root of 7421023332 is about 86145.3616394986. The cubic root of 7421023332 is about 1950.5388238796.

Adding to 7421023332 its reverse (2333201247), we get a palindrome (9754224579).

The spelling of 7421023332 in words is "seven billion, four hundred twenty-one million, twenty-three thousand, three hundred thirty-two".