72941652 has 72 divisors (see below), whose sum is σ = 216443136. Its totient is φ = 20274624.

The previous prime is 72941651. The next prime is 72941653. The reversal of 72941652 is 25614927.

It is an interprime number because it is at equal distance from previous prime (72941651) and next prime (72941653).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72941651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5413 + ... + 13235.

Almost surely, 2^72941652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72941652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108221568).

72941652 is an abundant number, since it is smaller than the sum of its proper divisors (143501484).

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

72941652 is a wasteful number, since it uses less digits than its factorization.

72941652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877 (or 7872 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 72941652 is about 8540.5885043128. The cubic root of 72941652 is about 417.8225401483.

The spelling of 72941652 in words is "seventy-two million, nine hundred forty-one thousand, six hundred fifty-two".