4020146 has 8 divisors (see below), whose sum is σ = 6494124. Its totient is φ = 1855440.

The previous prime is 4020139. The next prime is 4020151. The reversal of 4020146 is 6410204.

It can be written as a sum of positive squares in 2 ways, for example, as 4020025 + 121 = 2005^2 + 11^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4020146² = 32323147722632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77285 + ... + 77336.

Almost surely, 2^4020146 is an apocalyptic number.

4020146 is a deficient number, since it is larger than the sum of its proper divisors (2473978).

4020146 is a wasteful number, since it uses less digits than its factorization.

4020146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154636.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4020146 is about 2005.0301743365. The cubic root of 4020146 is about 159.0061572184.

The spelling of 4020146 in words is "four million, twenty thousand, one hundred forty-six".