72219804 has 12 divisors (see below), whose sum is σ = 168512904. Its totient is φ = 24073264.

The previous prime is 72219787. The next prime is 72219821. The reversal of 72219804 is 40891227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72219787) and next prime (72219821).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 3009147 + ... + 3009170.

It is an arithmetic number, because the mean of its divisors is an integer number (14042742).

Almost surely, 2^72219804 is an apocalyptic number.

It is an amenable number.

72219804 is an abundant number, since it is smaller than the sum of its proper divisors (96293100).

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

72219804 is a wasteful number, since it uses less digits than its factorization.

72219804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018324 (or 6018322 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 72219804 is about 8498.2235790782. The cubic root of 72219804 is about 416.4396778228.

The spelling of 72219804 in words is "seventy-two million, two hundred nineteen thousand, eight hundred four".