3620340 has 36 divisors (see below), whose sum is σ = 10982244. Its totient is φ = 965376.

The previous prime is 3620329. The next prime is 3620369. The reversal of 3620340 is 430263.

3620340 is a `hidden beast` number, since 3 + 620 + 3 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 2944656 = 822^2 + 1716^2 .

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9877 + ... + 10236.

Almost surely, 2^3620340 is an apocalyptic number.

3620340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3620340 is an abundant number, since it is smaller than the sum of its proper divisors (7361904).

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

3620340 is a wasteful number, since it uses less digits than its factorization.

3620340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20128 (or 20123 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3620340 is about 1902.7191069625. The cubic root of 3620340 is about 153.5499877868.

The spelling of 3620340 in words is "three million, six hundred twenty thousand, three hundred forty".