72224126 has 16 divisors (see below), whose sum is σ = 123533424. Its totient is φ = 31373184.

The previous prime is 72224059. The next prime is 72224137. The reversal of 72224126 is 62142227.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 72224095 and 72224104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81260 + ... + 82143.

It is an arithmetic number, because the mean of its divisors is an integer number (7720839).

Almost surely, 2^72224126 is an apocalyptic number.

72224126 is a deficient number, since it is larger than the sum of its proper divisors (51309298).

72224126 is a wasteful number, since it uses less digits than its factorization.

72224126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163435.

The product of its digits is 2688, while the sum is 26.

The square root of 72224126 is about 8498.4778637118. The cubic root of 72224126 is about 416.4479849458.

The spelling of 72224126 in words is "seventy-two million, two hundred twenty-four thousand, one hundred twenty-six".