72061332 has 24 divisors (see below), whose sum is σ = 192163776. Its totient is φ = 20588928.

The previous prime is 72061321. The next prime is 72061333. The reversal of 72061332 is 23316027.

It is a super-2 number, since 2×72061332² = 10385671139228448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72061333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428853 + ... + 429020.

It is an arithmetic number, because the mean of its divisors is an integer number (8006824).

Almost surely, 2^72061332 is an apocalyptic number.

It is an amenable number.

72061332 is an abundant number, since it is smaller than the sum of its proper divisors (120102444).

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

72061332 is a wasteful number, since it uses less digits than its factorization.

72061332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857887 (or 857885 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 72061332 is about 8488.8946276886. The cubic root of 72061332 is about 416.1348567342.

Adding to 72061332 its reverse (23316027), we get a palindrome (95377359).

The spelling of 72061332 in words is "seventy-two million, sixty-one thousand, three hundred thirty-two".