2020072 has 8 divisors (see below), whose sum is σ = 3787650. Its totient is φ = 1010032.

The previous prime is 2020043. The next prime is 2020079. The reversal of 2020072 is 2700202.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 417316 = 1266^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2020079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126247 + ... + 126262.

2^2020072 is an apocalyptic number.

It is an amenable number.

2020072 is a deficient number, since it is larger than the sum of its proper divisors (1767578).

2020072 is a wasteful number, since it uses less digits than its factorization.

2020072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252515 (or 252511 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 2020072 is about 1421.2923696411. The cubic root of 2020072 is about 126.4121883776.

Adding to 2020072 its reverse (2700202), we get a palindrome (4720274).

The spelling of 2020072 in words is "two million, twenty thousand, seventy-two".