72214324 has 24 divisors (see below), whose sum is σ = 155539328. Its totient is φ = 28568160.

The previous prime is 72214291. The next prime is 72214327. The reversal of 72214324 is 42341227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72214327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98832 + ... + 99559.

Almost surely, 2^72214324 is an apocalyptic number.

It is an amenable number.

72214324 is an abundant number, since it is smaller than the sum of its proper divisors (83325004).

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

72214324 is a wasteful number, since it uses less digits than its factorization.

72214324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198415 (or 198413 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 72214324 is about 8497.9011526376. The cubic root of 72214324 is about 416.4291444832.

The spelling of 72214324 in words is "seventy-two million, two hundred fourteen thousand, three hundred twenty-four".