42025266 has 48 divisors (see below), whose sum is σ = 94699800. Its totient is φ = 13457664.

The previous prime is 42025261. The next prime is 42025273. The reversal of 42025266 is 66252024.

It can be written as a sum of positive squares in 4 ways, for example, as 31036041 + 10989225 = 5571^2 + 3315^2 .

It is a super-2 number, since 2×42025266² = 3532245964741512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42025261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58920 + ... + 59628.

Almost surely, 2^42025266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42025266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47349900).

42025266 is an abundant number, since it is smaller than the sum of its proper divisors (52674534).

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

42025266 is a wasteful number, since it uses less digits than its factorization.

42025266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 42025266 is about 6482.6897195531. The cubic root of 42025266 is about 347.6723531268.

The spelling of 42025266 in words is "forty-two million, twenty-five thousand, two hundred sixty-six".