4001434 has 4 divisors (see below), whose sum is σ = 6002154. Its totient is φ = 2000716.

The previous prime is 4001411. The next prime is 4001453. The reversal of 4001434 is 4341004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 485809 = 1875^2 + 697^2 .

It is a super-2 number, since 2×4001434² = 32022948112712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000357 + ... + 1000360.

Almost surely, 2^4001434 is an apocalyptic number.

4001434 is a deficient number, since it is larger than the sum of its proper divisors (2000720).

4001434 is a wasteful number, since it uses less digits than its factorization.

4001434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000719.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4001434 is about 2000.3584678752. The cubic root of 4001434 is about 158.7590723730.

Adding to 4001434 its reverse (4341004), we get a palindrome (8342438).

The spelling of 4001434 in words is "four million, one thousand, four hundred thirty-four".