42413240 has 32 divisors (see below), whose sum is σ = 95634000. Its totient is φ = 16929024.

The previous prime is 42413207. The next prime is 42413243. The reversal of 42413240 is 4231424.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42413243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25556 + ... + 27164.

Almost surely, 2^42413240 is an apocalyptic number.

42413240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42413240 is an abundant number, since it is smaller than the sum of its proper divisors (53220760).

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

42413240 is a wasteful number, since it uses less digits than its factorization.

42413240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2275 counting only the distinct ones).

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

The square root of 42413240 is about 6512.5448175041. The cubic root of 42413240 is about 348.7389722579.

Adding to 42413240 its reverse (4231424), we get a palindrome (46644664).

The spelling of 42413240 in words is "forty-two million, four hundred thirteen thousand, two hundred forty".