42632240 has 40 divisors (see below), whose sum is σ = 113281440. Its totient is φ = 14616576.

The previous prime is 42632237. The next prime is 42632267. The reversal of 42632240 is 4223624.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37505 + ... + 38624.

It is an arithmetic number, because the mean of its divisors is an integer number (2832036).

Almost surely, 2^42632240 is an apocalyptic number.

42632240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42632240 is an abundant number, since it is smaller than the sum of its proper divisors (70649200).

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

42632240 is a wasteful number, since it uses less digits than its factorization.

42632240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76149 (or 76143 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 42632240 is about 6529.3368729144. The cubic root of 42632240 is about 349.3381779074.

Adding to 42632240 its reverse (4223624), we get a palindrome (46855864).

The spelling of 42632240 in words is "forty-two million, six hundred thirty-two thousand, two hundred forty".