42100432 has 40 divisors (see below), whose sum is σ = 94226112. Its totient is φ = 18009600.

The previous prime is 42100423. The next prime is 42100433. The reversal of 42100432 is 23400124.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42100433) 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, 4044 + ... + 10027.

Almost surely, 2^42100432 is an apocalyptic number.

It is an amenable number.

42100432 is an abundant number, since it is smaller than the sum of its proper divisors (52125680).

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

42100432 is a wasteful number, since it uses less digits than its factorization.

42100432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14107 (or 14101 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42100432 is about 6488.4845688342. The cubic root of 42100432 is about 347.8795108484.

Adding to 42100432 its reverse (23400124), we get a palindrome (65500556).

The spelling of 42100432 in words is "forty-two million, one hundred thousand, four hundred thirty-two".