72069246 has 12 divisors (see below), whose sum is σ = 156150072. Its totient is φ = 24023076.

The previous prime is 72069233. The next prime is 72069259. The reversal of 72069246 is 64296027.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72069233) and next prime (72069259).

It is a self number, because there is not a number n which added to its sum of digits gives 72069246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2001906 + ... + 2001941.

It is an arithmetic number, because the mean of its divisors is an integer number (13012506).

Almost surely, 2^72069246 is an apocalyptic number.

72069246 is an abundant number, since it is smaller than the sum of its proper divisors (84080826).

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

72069246 is a wasteful number, since it uses less digits than its factorization.

72069246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003855 (or 4003852 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 72069246 is about 8489.3607533194. The cubic root of 72069246 is about 416.1500899188.

The spelling of 72069246 in words is "seventy-two million, sixty-nine thousand, two hundred forty-six".