4020998 has 16 divisors (see below), whose sum is σ = 6401376. Its totient is φ = 1890240.

The previous prime is 4020977. The next prime is 4021001. The reversal of 4020998 is 8990204.

It is a congruent number.

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, 2090 + ... + 3522.

It is an arithmetic number, because the mean of its divisors is an integer number (400086).

Almost surely, 2^4020998 is an apocalyptic number.

4020998 is a deficient number, since it is larger than the sum of its proper divisors (2380378).

4020998 is a wasteful number, since it uses less digits than its factorization.

4020998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519.

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

The square root of 4020998 is about 2005.2426287110. The cubic root of 4020998 is about 159.0173892878.

The spelling of 4020998 in words is "four million, twenty thousand, nine hundred ninety-eight".