72070002 has 24 divisors (see below), whose sum is σ = 164370960. Its totient is φ = 22758840.

The previous prime is 72070001. The next prime is 72070051. The reversal of 72070002 is 20007027.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (72070001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105024 + ... + 105707.

It is an arithmetic number, because the mean of its divisors is an integer number (6848790).

Almost surely, 2^72070002 is an apocalyptic number.

72070002 is an abundant number, since it is smaller than the sum of its proper divisors (92300958).

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

72070002 is a wasteful number, since it uses less digits than its factorization.

72070002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210758 (or 210755 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 72070002 is about 8489.4052795234. The cubic root of 72070002 is about 416.1515450395.

Adding to 72070002 its reverse (20007027), we get a palindrome (92077029).

The spelling of 72070002 in words is "seventy-two million, seventy thousand, two".