42076240 has 20 divisors (see below), whose sum is σ = 97827444. Its totient is φ = 16830464.

The previous prime is 42076217. The next prime is 42076247. The reversal of 42076240 is 4267024.

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 20286016 = 4668^2 + 4504^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42076247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262897 + ... + 263056.

Almost surely, 2^42076240 is an apocalyptic number.

42076240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42076240 is an abundant number, since it is smaller than the sum of its proper divisors (55751204).

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

42076240 is a wasteful number, since it uses less digits than its factorization.

42076240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525966 (or 525960 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42076240 is about 6486.6200752010. The cubic root of 42076240 is about 347.8128645517.

The spelling of 42076240 in words is "forty-two million, seventy-six thousand, two hundred forty".