42947036 has 24 divisors (see below), whose sum is σ = 82525296. Its totient is φ = 19393920.

The previous prime is 42947033. The next prime is 42947089. The reversal of 42947036 is 63074924.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42946987 and 42947005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 10016.

It is an arithmetic number, because the mean of its divisors is an integer number (3438554).

Almost surely, 2^42947036 is an apocalyptic number.

It is an amenable number.

42947036 is a deficient number, since it is larger than the sum of its proper divisors (39578260).

42947036 is a wasteful number, since it uses less digits than its factorization.

42947036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6387 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 42947036 is about 6553.3988128299. The cubic root of 42947036 is about 350.1959066506.

The spelling of 42947036 in words is "forty-two million, nine hundred forty-seven thousand, thirty-six".