3621450 has 48 divisors (see below), whose sum is σ = 10267200. Its totient is φ = 827520.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621450 is 541263.

It is a happy number.

It is a super-2 number, since 2×3621450² = 26229800205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 675 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (213900).

Almost surely, 2^3621450 is an apocalyptic number.

3621450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3621450 is an abundant number, since it is smaller than the sum of its proper divisors (6645750).

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

3621450 is a wasteful number, since it uses less digits than its factorization.

3621450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471 (or 3466 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3621450 is about 1903.0107724340. The cubic root of 3621450 is about 153.5656790451.

The spelling of 3621450 in words is "three million, six hundred twenty-one thousand, four hundred fifty".