42646941 has 6 divisors (see below), whose sum is σ = 61601150. Its totient is φ = 28431288.

The previous prime is 42646939. The next prime is 42646943. The reversal of 42646941 is 14964624.

42646941 is a `hidden beast` number, since 4 + 2 + 646 + 9 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (42646939) and next prime (42646943).

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 4639716 = 6165^2 + 2154^2 .

It is not a de Polignac number, because 42646941 - 2¹ = 42646939 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42646896 and 42646905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42646943) 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, 2369266 + ... + 2369283.

Almost surely, 2^42646941 is an apocalyptic number.

It is an amenable number.

42646941 is a deficient number, since it is larger than the sum of its proper divisors (18954209).

42646941 is a wasteful number, since it uses less digits than its factorization.

42646941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738555 (or 4738552 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 42646941 is about 6530.4625410456. The cubic root of 42646941 is about 349.3783277280.

The spelling of 42646941 in words is "forty-two million, six hundred forty-six thousand, nine hundred forty-one".