42754839 has 16 divisors (see below), whose sum is σ = 58329600. Its totient is φ = 27848160.

The previous prime is 42754781. The next prime is 42754867. The reversal of 42754839 is 93845724.

It is not a de Polignac number, because 42754839 - 2¹⁶ = 42689303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42754839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42754039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29862 + ... + 31260.

It is an arithmetic number, because the mean of its divisors is an integer number (3645600).

Almost surely, 2^42754839 is an apocalyptic number.

42754839 is a deficient number, since it is larger than the sum of its proper divisors (15574761).

42754839 is a wasteful number, since it uses less digits than its factorization.

42754839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its digits is 241920, while the sum is 42.

The square root of 42754839 is about 6538.7184524186. The cubic root of 42754839 is about 349.6727253631.

The spelling of 42754839 in words is "forty-two million, seven hundred fifty-four thousand, eight hundred thirty-nine".