72037660 has 12 divisors (see below), whose sum is σ = 151279128. Its totient is φ = 28815056.

The previous prime is 72037649. The next prime is 72037661. The reversal of 72037660 is 6673027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72037661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800922 + ... + 1800961.

It is an arithmetic number, because the mean of its divisors is an integer number (12606594).

Almost surely, 2^72037660 is an apocalyptic number.

It is an amenable number.

72037660 is an abundant number, since it is smaller than the sum of its proper divisors (79241468).

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

72037660 is a wasteful number, since it uses less digits than its factorization.

72037660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601892 (or 3601890 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 72037660 is about 8487.5002209131. The cubic root of 72037660 is about 416.0892852611.

The spelling of 72037660 in words is "seventy-two million, thirty-seven thousand, six hundred sixty".