72250426 has 16 divisors (see below), whose sum is σ = 118015200. Its totient is φ = 33043248.

The previous prime is 72250411. The next prime is 72250433. The reversal of 72250426 is 62405227.

It is a junction number, because it is equal to n+sod(n) for n = 72250394 and 72250403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31680 + ... + 33883.

It is an arithmetic number, because the mean of its divisors is an integer number (7375950).

Almost surely, 2^72250426 is an apocalyptic number.

72250426 is a deficient number, since it is larger than the sum of its proper divisors (45764774).

72250426 is a wasteful number, since it uses less digits than its factorization.

72250426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65613.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 72250426 is about 8500.0250587866. The cubic root of 72250426 is about 416.4985278573.

The spelling of 72250426 in words is "seventy-two million, two hundred fifty thousand, four hundred twenty-six".