72381214 has 8 divisors (see below), whose sum is σ = 108607968. Its totient is φ = 36178560.

The previous prime is 72381191. The next prime is 72381227. The reversal of 72381214 is 41218327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72381214² = 10478080280227592, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8254 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (13575996).

Almost surely, 2^72381214 is an apocalyptic number.

72381214 is a deficient number, since it is larger than the sum of its proper divisors (36226754).

72381214 is a wasteful number, since it uses less digits than its factorization.

72381214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12050.

The product of its digits is 2688, while the sum is 28.

The square root of 72381214 is about 8507.7149693675. The cubic root of 72381214 is about 416.7496921129.

The spelling of 72381214 in words is "seventy-two million, three hundred eighty-one thousand, two hundred fourteen".