42040226 has 8 divisors (see below), whose sum is σ = 63276444. Its totient is φ = 20948080.

The previous prime is 42040199. The next prime is 42040249. The reversal of 42040226 is 62204024.

It can be written as a sum of positive squares in 2 ways, for example, as 37222201 + 4818025 = 6101^2 + 2195^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42040198 and 42040207.

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, 35285 + ... + 36456.

Almost surely, 2^42040226 is an apocalyptic number.

42040226 is a deficient number, since it is larger than the sum of its proper divisors (21236218).

42040226 is a wasteful number, since it uses less digits than its factorization.

42040226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72036.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42040226 is about 6483.8434589370. The cubic root of 42040226 is about 347.7136026088.

The spelling of 42040226 in words is "forty-two million, forty thousand, two hundred twenty-six".