3670020 has 36 divisors (see below), whose sum is σ = 11132940. Its totient is φ = 978624.

The previous prime is 3670013. The next prime is 3670027. The reversal of 3670020 is 200763.

It is an interprime number because it is at equal distance from previous prime (3670013) and next prime (3670027).

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 1065024 = 1614^2 + 1032^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3669975 and 3670002.

It is not an unprimeable number, because it can be changed into a prime (3670027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10015 + ... + 10374.

Almost surely, 2^3670020 is an apocalyptic number.

3670020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3670020 is an abundant number, since it is smaller than the sum of its proper divisors (7462920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3670020 is a wasteful number, since it uses less digits than its factorization.

3670020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404 (or 20399 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3670020 is about 1915.7296260172. The cubic root of 3670020 is about 154.2491609466.

Adding to 3670020 its reverse (200763), we get a palindrome (3870783).

The spelling of 3670020 in words is "three million, six hundred seventy thousand, twenty".