3620444 has 6 divisors (see below), whose sum is σ = 6335784. Its totient is φ = 1810220.

The previous prime is 3620443. The next prime is 3620467. The reversal of 3620444 is 4440263.

It is a happy number.

It is a super-2 number, since 2×3620444² = 26215229514272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452552 + ... + 452559.

It is an arithmetic number, because the mean of its divisors is an integer number (1055964).

Almost surely, 2^3620444 is an apocalyptic number.

It is an amenable number.

3620444 is a deficient number, since it is larger than the sum of its proper divisors (2715340).

3620444 is a wasteful number, since it uses less digits than its factorization.

3620444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905115 (or 905113 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3620444 is about 1902.7464360760. The cubic root of 3620444 is about 153.5514580949.

The spelling of 3620444 in words is "three million, six hundred twenty thousand, four hundred forty-four".