72214430 has 16 divisors (see below), whose sum is σ = 130496400. Its totient is φ = 28772352.

The previous prime is 72214403. The next prime is 72214451. The reversal of 72214430 is 3441227.

It is a junction number, because it is equal to n+sod(n) for n = 72214396 and 72214405.

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, 11480 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (8156025).

Almost surely, 2^72214430 is an apocalyptic number.

72214430 is a deficient number, since it is larger than the sum of its proper divisors (58281970).

72214430 is a wasteful number, since it uses less digits than its factorization.

72214430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28363.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 72214430 is about 8497.9073894695. The cubic root of 72214430 is about 416.4293482353.

Adding to 72214430 its reverse (3441227), we get a palindrome (75655657).

The spelling of 72214430 in words is "seventy-two million, two hundred fourteen thousand, four hundred thirty".