42544629 has 32 divisors (see below), whose sum is σ = 66816000. Its totient is φ = 26680752.

The previous prime is 42544627. The next prime is 42544643. The reversal of 42544629 is 92644524.

42544629 is a `hidden beast` number, since 4 + 25 + 4 + 4 + 629 = 666.

It is not a de Polignac number, because 42544629 - 2¹ = 42544627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42544593 and 42544602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42544627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122434 + ... + 122780.

It is an arithmetic number, because the mean of its divisors is an integer number (2088000).

Almost surely, 2^42544629 is an apocalyptic number.

It is an amenable number.

42544629 is a deficient number, since it is larger than the sum of its proper divisors (24271371).

42544629 is a wasteful number, since it uses less digits than its factorization.

42544629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 608 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42544629 is about 6522.6243951342. The cubic root of 42544629 is about 349.0987123722.

It can be divided in two parts, 425 and 44629, that added together give a palindrome (45054).

The spelling of 42544629 in words is "forty-two million, five hundred forty-four thousand, six hundred twenty-nine".