42465949 has 6 divisors (see below), whose sum is σ = 45111194. Its totient is φ = 39967680.

The previous prime is 42465923. The next prime is 42465953. The reversal of 42465949 is 94956424.

It can be written as a sum of positive squares in 3 ways, for example, as 14976900 + 27489049 = 3870^2 + 5243^2 .

It is not a de Polignac number, because 42465949 - 2²³ = 34077341 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 (42465919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73182 + ... + 73759.

Almost surely, 2^42465949 is an apocalyptic number.

It is an amenable number.

42465949 is a deficient number, since it is larger than the sum of its proper divisors (2645245).

42465949 is a wasteful number, since it uses less digits than its factorization.

42465949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146975 (or 146958 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 42465949 is about 6516.5902894075. The cubic root of 42465949 is about 348.8833774258.

The spelling of 42465949 in words is "forty-two million, four hundred sixty-five thousand, nine hundred forty-nine".