42463861 has 6 divisors (see below), whose sum is σ = 46675286. Its totient is φ = 38603400.

The previous prime is 42463849. The next prime is 42463873. The reversal of 42463861 is 16836424.

It is an interprime number because it is at equal distance from previous prime (42463849) and next prime (42463873).

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 15163236 = 5225^2 + 3894^2 .

It is not a de Polignac number, because 42463861 - 2⁹ = 42463349 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 (42463891) 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, 175350 + ... + 175591.

Almost surely, 2^42463861 is an apocalyptic number.

It is an amenable number.

42463861 is a deficient number, since it is larger than the sum of its proper divisors (4211425).

42463861 is a wasteful number, since it uses less digits than its factorization.

42463861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350963 (or 350952 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 42463861 is about 6516.4300809569. The cubic root of 42463861 is about 348.8776592724.

The spelling of 42463861 in words is "forty-two million, four hundred sixty-three thousand, eight hundred sixty-one".