72270332 has 24 divisors (see below), whose sum is σ = 135807840. Its totient is φ = 33528320.

The previous prime is 72270329. The next prime is 72270337. The reversal of 72270332 is 23307227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72270337) 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, 2657 + ... + 12312.

It is an arithmetic number, because the mean of its divisors is an integer number (5658660).

Almost surely, 2^72270332 is an apocalyptic number.

It is an amenable number.

72270332 is a deficient number, since it is larger than the sum of its proper divisors (63537508).

72270332 is a wasteful number, since it uses less digits than its factorization.

72270332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15061 (or 15059 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 72270332 is about 8501.1959158697. The cubic root of 72270332 is about 416.5367747294.

Adding to 72270332 its reverse (23307227), we get a palindrome (95577559).

The spelling of 72270332 in words is "seventy-two million, two hundred seventy thousand, three hundred thirty-two".