71953242 has 16 divisors (see below), whose sum is σ = 145391232. Its totient is φ = 23736960.

The previous prime is 71953241. The next prime is 71953249. The reversal of 71953242 is 24235917.

It is not an unprimeable number, because it can be changed into a prime (71953241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61234 + ... + 62397.

It is an arithmetic number, because the mean of its divisors is an integer number (9086952).

Almost surely, 2^71953242 is an apocalyptic number.

71953242 is an abundant number, since it is smaller than the sum of its proper divisors (73437990).

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

71953242 is a wasteful number, since it uses less digits than its factorization.

71953242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123733.

The product of its digits is 15120, while the sum is 33.

The square root of 71953242 is about 8482.5256851954. The cubic root of 71953242 is about 415.9266890352.

The spelling of 71953242 in words is "seventy-one million, nine hundred fifty-three thousand, two hundred forty-two".