42352540 has 24 divisors (see below), whose sum is σ = 89132400. Its totient is φ = 16904448.

The previous prime is 42352537. The next prime is 42352547. The reversal of 42352540 is 4525324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42352547) 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, 8436 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (3713850).

Almost surely, 2^42352540 is an apocalyptic number.

It is an amenable number.

42352540 is an abundant number, since it is smaller than the sum of its proper divisors (46779860).

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

42352540 is a wasteful number, since it uses less digits than its factorization.

42352540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581 (or 4579 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42352540 is about 6507.8829122841. The cubic root of 42352540 is about 348.5725261032.

Adding to 42352540 its reverse (4525324), we get a palindrome (46877864).

The spelling of 42352540 in words is "forty-two million, three hundred fifty-two thousand, five hundred forty".