42040360 has 16 divisors (see below), whose sum is σ = 94590900. Its totient is φ = 16816128.

The previous prime is 42040351. The next prime is 42040373. The reversal of 42040360 is 6304024.

It can be written as a sum of positive squares in 2 ways, for example, as 40018276 + 2022084 = 6326^2 + 1422^2 .

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, 525465 + ... + 525544.

Almost surely, 2^42040360 is an apocalyptic number.

42040360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42040360 is an abundant number, since it is smaller than the sum of its proper divisors (52550540).

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

42040360 is a wasteful number, since it uses less digits than its factorization.

42040360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051020 (or 1051016 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42040360 is about 6483.8537923059. The cubic root of 42040360 is about 347.7139720452.

Adding to 42040360 its reverse (6304024), we get a palindrome (48344384).

The spelling of 42040360 in words is "forty-two million, forty thousand, three hundred sixty".