4029890 has 16 divisors (see below), whose sum is σ = 7431480. Its totient is φ = 1572480.

The previous prime is 4029871. The next prime is 4029911. The reversal of 4029890 is 989204.

It can be written as a sum of positive squares in 4 ways, for example, as 3087049 + 942841 = 1757^2 + 971^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4505 + ... + 5324.

Almost surely, 2^4029890 is an apocalyptic number.

4029890 is a deficient number, since it is larger than the sum of its proper divisors (3401590).

4029890 is a wasteful number, since it uses less digits than its factorization.

4029890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9877.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 4029890 is about 2007.4585923500. The cubic root of 4029890 is about 159.1345195471.

The spelling of 4029890 in words is "four million, twenty-nine thousand, eight hundred ninety".