4020046 has 4 divisors (see below), whose sum is σ = 6030072. Its totient is φ = 2010022.

The previous prime is 4020031. The next prime is 4020119. The reversal of 4020046 is 6400204.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005010 + ... + 1005013.

It is an arithmetic number, because the mean of its divisors is an integer number (1507518).

Almost surely, 2^4020046 is an apocalyptic number.

4020046 is a deficient number, since it is larger than the sum of its proper divisors (2010026).

4020046 is a wasteful number, since it uses less digits than its factorization.

4020046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010025.

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

The square root of 4020046 is about 2005.0052369009. The cubic root of 4020046 is about 159.0048387963.

Subtracting from 4020046 its sum of digits (16), we obtain a triangular number (4020030 = T₂₈₃₅).

The spelling of 4020046 in words is "four million, twenty thousand, forty-six".