42411840 has 56 divisors (see below), whose sum is σ = 134660640. Its totient is φ = 11309568.

The previous prime is 42411829. The next prime is 42411841. The reversal of 42411840 is 4811424.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42411840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42411841) 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, 21130 + ... + 23049.

Almost surely, 2^42411840 is an apocalyptic number.

42411840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42411840 is an abundant number, since it is smaller than the sum of its proper divisors (92248800).

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

42411840 is a wasteful number, since it uses less digits than its factorization.

42411840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44199 (or 44189 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 42411840 is about 6512.4373317522. The cubic root of 42411840 is about 348.7351350918.

The spelling of 42411840 in words is "forty-two million, four hundred eleven thousand, eight hundred forty".