43221496 has 8 divisors (see below), whose sum is σ = 81040320. Its totient is φ = 21610744.

The previous prime is 43221487. The next prime is 43221509. The reversal of 43221496 is 69412234.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701336 + ... + 2701351.

It is an arithmetic number, because the mean of its divisors is an integer number (10130040).

Almost surely, 2^43221496 is an apocalyptic number.

It is an amenable number.

43221496 is a deficient number, since it is larger than the sum of its proper divisors (37818824).

43221496 is a wasteful number, since it uses less digits than its factorization.

43221496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402693 (or 5402689 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 43221496 is about 6574.3057428142. The cubic root of 43221496 is about 350.9403177178.

The spelling of 43221496 in words is "forty-three million, two hundred twenty-one thousand, four hundred ninety-six".