42479549 has 16 divisors (see below), whose sum is σ = 51579648. Its totient is φ = 34152192.

The previous prime is 42479543. The next prime is 42479603. The reversal of 42479549 is 94597424.

It is a cyclic number.

It is not a de Polignac number, because 42479549 - 2⁴ = 42479533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42479543) 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, 57587 + ... + 58319.

It is an arithmetic number, because the mean of its divisors is an integer number (3223728).

Almost surely, 2^42479549 is an apocalyptic number.

It is an amenable number.

42479549 is a deficient number, since it is larger than the sum of its proper divisors (9100099).

42479549 is a wasteful number, since it uses less digits than its factorization.

42479549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

The product of its digits is 362880, while the sum is 44.

The square root of 42479549 is about 6517.6336963656. The cubic root of 42479549 is about 348.9206175175.

The spelling of 42479549 in words is "forty-two million, four hundred seventy-nine thousand, five hundred forty-nine".