4047642 has 12 divisors (see below), whose sum is σ = 8769930. Its totient is φ = 1349208.

The previous prime is 4047629. The next prime is 4047647. The reversal of 4047642 is 2467404.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 1490841 = 1599^2 + 1221^2 .

It is not an unprimeable number, because it can be changed into a prime (4047647) 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, 112417 + ... + 112452.

Almost surely, 2^4047642 is an apocalyptic number.

4047642 is an abundant number, since it is smaller than the sum of its proper divisors (4722288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4047642 is a wasteful number, since it uses less digits than its factorization.

4047642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224877 (or 224874 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 4047642 is about 2011.8752446412. The cubic root of 4047642 is about 159.3678442001.

The spelling of 4047642 in words is "four million, forty-seven thousand, six hundred forty-two".