72126426 has 8 divisors (see below), whose sum is σ = 144252864. Its totient is φ = 24042140.

The previous prime is 72126403. The next prime is 72126433. The reversal of 72126426 is 62462127.

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

72126426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72126393 and 72126402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6010530 + ... + 6010541.

It is an arithmetic number, because the mean of its divisors is an integer number (18031608).

Almost surely, 2^72126426 is an apocalyptic number.

72126426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72126426 is a wasteful number, since it uses less digits than its factorization.

72126426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12021076.

The product of its digits is 8064, while the sum is 30.

The square root of 72126426 is about 8492.7278303264. The cubic root of 72126426 is about 416.2601191527.

The spelling of 72126426 in words is "seventy-two million, one hundred twenty-six thousand, four hundred twenty-six".