3642020445 has 64 divisors (see below), whose sum is σ = 7137239040. Its totient is φ = 1549456128.

The previous prime is 3642020423. The next prime is 3642020471. The reversal of 3642020445 is 5440202463.

3642020445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3642020445 - 2⁹ = 3642019933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68976 + ... + 109734.

It is an arithmetic number, because the mean of its divisors is an integer number (111519360).

Almost surely, 2^3642020445 is an apocalyptic number.

3642020445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3642020445 is a deficient number, since it is larger than the sum of its proper divisors (3495218595).

3642020445 is a wasteful number, since it uses less digits than its factorization.

3642020445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40834.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 3642020445 is about 60349.1544679791. The cubic root of 3642020445 is about 1538.5588988170.

It can be divided in two parts, 36420 and 20445, that added together give a palindrome (56865).

The spelling of 3642020445 in words is "three billion, six hundred forty-two million, twenty thousand, four hundred forty-five".