42968936 has 8 divisors (see below), whose sum is σ = 80566770. Its totient is φ = 21484464.

The previous prime is 42968929. The next prime is 42968971. The reversal of 42968936 is 63986924.

It can be written as a sum of positive squares in only one way, i.e., 41036836 + 1932100 = 6406^2 + 1390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2685551 + ... + 2685566.

Almost surely, 2^42968936 is an apocalyptic number.

It is an amenable number.

42968936 is a deficient number, since it is larger than the sum of its proper divisors (37597834).

42968936 is a wasteful number, since it uses less digits than its factorization.

42968936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371123 (or 5371119 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 42968936 is about 6555.0694885714. The cubic root of 42968936 is about 350.2554217172.

The spelling of 42968936 in words is "forty-two million, nine hundred sixty-eight thousand, nine hundred thirty-six".