42453632 has 64 divisors (see below), whose sum is σ = 94133760. Its totient is φ = 18938880.

The previous prime is 42453617. The next prime is 42453637. The reversal of 42453632 is 23635424.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 42453595 and 42453604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42453637) 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, 51173 + ... + 51995.

It is an arithmetic number, because the mean of its divisors is an integer number (1470840).

Almost surely, 2^42453632 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 42453632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47066880).

42453632 is an abundant number, since it is smaller than the sum of its proper divisors (51680128).

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

42453632 is a wasteful number, since it uses less digits than its factorization.

42453632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 869 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 42453632 is about 6515.6451714316. The cubic root of 42453632 is about 348.8496436368.

The spelling of 42453632 in words is "forty-two million, four hundred fifty-three thousand, six hundred thirty-two".