7421403708 has 84 divisors (see below), whose sum is σ = 19497563568. Its totient is φ = 2470590720.

The previous prime is 7421403637. The next prime is 7421403733. The reversal of 7421403708 is 8073041247.

It is a happy number.

7421403708 is a `hidden beast` number, since 74 + 214 + 0 + 370 + 8 = 666.

It is a super-2 number, since 2×7421403708² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 3565228 + ... + 3567308.

It is an arithmetic number, because the mean of its divisors is an integer number (232113852).

Almost surely, 2^7421403708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421403708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9748781784).

7421403708 is an abundant number, since it is smaller than the sum of its proper divisors (12076159860).

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

7421403708 is a wasteful number, since it uses less digits than its factorization.

7421403708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 7421403708 is about 86147.5693679166. The cubic root of 7421403708 is about 1950.5721492691.

The spelling of 7421403708 in words is "seven billion, four hundred twenty-one million, four hundred three thousand, seven hundred eight".