72422403 has 4 divisors (see below), whose sum is σ = 96563208. Its totient is φ = 48281600.

The previous prime is 72422401. The next prime is 72422407. The reversal of 72422403 is 30422427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72422403 - 2¹ = 72422401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72422401) 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, 12070398 + ... + 12070403.

It is an arithmetic number, because the mean of its divisors is an integer number (24140802).

Almost surely, 2^72422403 is an apocalyptic number.

72422403 is a deficient number, since it is larger than the sum of its proper divisors (24140805).

72422403 is a wasteful number, since it uses less digits than its factorization.

72422403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24140804.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 72422403 is about 8510.1353103226. The cubic root of 72422403 is about 416.8287284959.

Adding to 72422403 its sum of digits (24), we get a palindrome (72422427).

The spelling of 72422403 in words is "seventy-two million, four hundred twenty-two thousand, four hundred three".