7331421398 has 16 divisors (see below), whose sum is σ = 12569706240. Its totient is φ = 3141648936.

The previous prime is 7331421379. The next prime is 7331421407. The reversal of 7331421398 is 8931241337.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104813 + ... + 160151.

It is an arithmetic number, because the mean of its divisors is an integer number (785606640).

Almost surely, 2^7331421398 is an apocalyptic number.

7331421398 is a deficient number, since it is larger than the sum of its proper divisors (5238284842).

7331421398 is a wasteful number, since it uses less digits than its factorization.

7331421398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64811.

The product of its digits is 108864, while the sum is 41.

The square root of 7331421398 is about 85623.7198327660. The cubic root of 7331421398 is about 1942.6567029156.

The spelling of 7331421398 in words is "seven billion, three hundred thirty-one million, four hundred twenty-one thousand, three hundred ninety-eight".