72404470 has 8 divisors (see below), whose sum is σ = 130328064. Its totient is φ = 28961784.

The previous prime is 72404467. The next prime is 72404477. The reversal of 72404470 is 7440427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72404477) 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, 3620214 + ... + 3620233.

It is an arithmetic number, because the mean of its divisors is an integer number (16291008).

Almost surely, 2^72404470 is an apocalyptic number.

72404470 is a deficient number, since it is larger than the sum of its proper divisors (57923594).

72404470 is a wasteful number, since it uses less digits than its factorization.

72404470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240454.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 72404470 is about 8509.0816190703. The cubic root of 72404470 is about 416.7943210642.

Adding to 72404470 its reverse (7440427), we get a palindrome (79844897).

The spelling of 72404470 in words is "seventy-two million, four hundred four thousand, four hundred seventy".