42645952 has 28 divisors (see below), whose sum is σ = 85587840. Its totient is φ = 21080576.

The previous prime is 42645947. The next prime is 42645959. The reversal of 42645952 is 25954624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42645959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1953 + ... + 9439.

Almost surely, 2^42645952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42645952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42793920).

42645952 is an abundant number, since it is smaller than the sum of its proper divisors (42941888).

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

42645952 is an equidigital number, since it uses as much as digits as its factorization.

42645952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7588 (or 7578 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 42645952 is about 6530.3868185583. The cubic root of 42645952 is about 349.3756269650.

The spelling of 42645952 in words is "forty-two million, six hundred forty-five thousand, nine hundred fifty-two".