42240632 has 16 divisors (see below), whose sum is σ = 90515760. Its totient is φ = 18103104.

The previous prime is 42240623. The next prime is 42240641. The reversal of 42240632 is 23604224.

It is an interprime number because it is at equal distance from previous prime (42240623) and next prime (42240641).

It is a junction number, because it is equal to n+sod(n) for n = 42240598 and 42240607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377093 + ... + 377204.

It is an arithmetic number, because the mean of its divisors is an integer number (5657235).

Almost surely, 2^42240632 is an apocalyptic number.

It is an amenable number.

42240632 is an abundant number, since it is smaller than the sum of its proper divisors (48275128).

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

42240632 is a wasteful number, since it uses less digits than its factorization.

42240632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754310 (or 754306 counting only the distinct ones).

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

The square root of 42240632 is about 6499.2793446658. The cubic root of 42240632 is about 348.2652445586.

Adding to 42240632 its reverse (23604224), we get a palindrome (65844856).

The spelling of 42240632 in words is "forty-two million, two hundred forty thousand, six hundred thirty-two".