72273210 has 32 divisors (see below), whose sum is σ = 178146432. Its totient is φ = 18751680.

The previous prime is 72273209. The next prime is 72273211. The reversal of 72273210 is 1237227.

It is an interprime number because it is at equal distance from previous prime (72273209) and next prime (72273211).

It is not an unprimeable number, because it can be changed into a prime (72273211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31446 + ... + 33665.

It is an arithmetic number, because the mean of its divisors is an integer number (5567076).

Almost surely, 2^72273210 is an apocalyptic number.

72273210 is an abundant number, since it is smaller than the sum of its proper divisors (105873222).

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

72273210 is a wasteful number, since it uses less digits than its factorization.

72273210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65158.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 72273210 is about 8501.3651844865. The cubic root of 72273210 is about 416.5423038628.

The spelling of 72273210 in words is "seventy-two million, two hundred seventy-three thousand, two hundred ten".