4019634 has 12 divisors (see below), whose sum is σ = 8709246. Its totient is φ = 1339872.

The previous prime is 4019627. The next prime is 4019647. The reversal of 4019634 is 4369104.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 1814409 = 1485^2 + 1347^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4019598 and 4019607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111639 + ... + 111674.

Almost surely, 2^4019634 is an apocalyptic number.

4019634 is an abundant number, since it is smaller than the sum of its proper divisors (4689612).

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

4019634 is a wasteful number, since it uses less digits than its factorization.

4019634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223321 (or 223318 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4019634 is about 2004.9024913945. The cubic root of 4019634 is about 158.9994066668. Note that the first 3 decimals are identical.

The spelling of 4019634 in words is "four million, nineteen thousand, six hundred thirty-four".