42061624 has 16 divisors (see below), whose sum is σ = 86035320. Its totient is φ = 19118880.

The previous prime is 42061597. The next prime is 42061627. The reversal of 42061624 is 42616024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42061627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238899 + ... + 239074.

Almost surely, 2^42061624 is an apocalyptic number.

42061624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42061624 is an abundant number, since it is smaller than the sum of its proper divisors (43973696).

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

42061624 is a wasteful number, since it uses less digits than its factorization.

42061624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477990 (or 477986 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42061624 is about 6485.4933505478. The cubic root of 42061624 is about 347.7725867007.

Adding to 42061624 its reverse (42616024), we get a palindrome (84677648).

The spelling of 42061624 in words is "forty-two million, sixty-one thousand, six hundred twenty-four".