42039441 has 24 divisors (see below), whose sum is σ = 63887616. Its totient is φ = 26601120.

The previous prime is 42039373. The next prime is 42039443. The reversal of 42039441 is 14493024.

It is not a de Polignac number, because 42039441 - 2¹⁴ = 42023057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42039443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13366 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (2661984).

Almost surely, 2^42039441 is an apocalyptic number.

It is an amenable number.

42039441 is a deficient number, since it is larger than the sum of its proper divisors (21848175).

42039441 is a wasteful number, since it uses less digits than its factorization.

42039441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2930 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42039441 is about 6483.7829235717. The cubic root of 42039441 is about 347.7114383572.

The spelling of 42039441 in words is "forty-two million, thirty-nine thousand, four hundred forty-one".