42235432 has 8 divisors (see below), whose sum is σ = 79191450. Its totient is φ = 21117712.

The previous prime is 42235411. The next prime is 42235439. The reversal of 42235432 is 23453224.

It can be written as a sum of positive squares in only one way, i.e., 40780996 + 1454436 = 6386^2 + 1206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 42235397 and 42235406.

It is not an unprimeable number, because it can be changed into a prime (42235439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639707 + ... + 2639722.

Almost surely, 2^42235432 is an apocalyptic number.

It is an amenable number.

42235432 is a deficient number, since it is larger than the sum of its proper divisors (36956018).

42235432 is a wasteful number, since it uses less digits than its factorization.

42235432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279435 (or 5279431 counting only the distinct ones).

The product of its digits is 5760, while the sum is 25.

The square root of 42235432 is about 6498.8792880004. The cubic root of 42235432 is about 348.2509529985.

Adding to 42235432 its reverse (23453224), we get a palindrome (65688656).

The spelling of 42235432 in words is "forty-two million, two hundred thirty-five thousand, four hundred thirty-two".