42539460 has 24 divisors (see below), whose sum is σ = 119110656. Its totient is φ = 11343840.

The previous prime is 42539429. The next prime is 42539467. The reversal of 42539460 is 6493524.

It is not an unprimeable number, because it can be changed into a prime (42539467) 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, 354436 + ... + 354555.

It is an arithmetic number, because the mean of its divisors is an integer number (4962944).

Almost surely, 2^42539460 is an apocalyptic number.

It is an amenable number.

42539460 is an abundant number, since it is smaller than the sum of its proper divisors (76571196).

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

42539460 is a wasteful number, since it uses less digits than its factorization.

42539460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709003 (or 709001 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 42539460 is about 6522.2281468835. The cubic root of 42539460 is about 349.0845737733.

The spelling of 42539460 in words is "forty-two million, five hundred thirty-nine thousand, four hundred sixty".