42153432 has 16 divisors (see below), whose sum is σ = 105383640. Its totient is φ = 14051136.

The previous prime is 42153431. The next prime is 42153439. The reversal of 42153432 is 23435124.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1756393 = 42153432 / (4 + 2 + 1 + 5 + 3 + 4 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42153431) 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, 878173 + ... + 878220.

Almost surely, 2^42153432 is an apocalyptic number.

It is an amenable number.

42153432 is an abundant number, since it is smaller than the sum of its proper divisors (63230208).

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

42153432 is a wasteful number, since it uses less digits than its factorization.

42153432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756402 (or 1756398 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 42153432 is about 6492.5674428534. The cubic root of 42153432 is about 348.0254308275.

Adding to 42153432 its reverse (23435124), we get a palindrome (65588556).

The spelling of 42153432 in words is "forty-two million, one hundred fifty-three thousand, four hundred thirty-two".