1620352 has 16 divisors (see below), whose sum is σ = 3228300. Its totient is φ = 810112.

The previous prime is 1620347. The next prime is 1620371. The reversal of 1620352 is 2530261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202 + ... + 6457.

2^1620352 is an apocalyptic number.

It is an amenable number.

1620352 is a deficient number, since it is larger than the sum of its proper divisors (1607948).

1620352 is an equidigital number, since it uses as much as digits as its factorization.

1620352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673 (or 12661 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1620352 is about 1272.9304772846. The cubic root of 1620352 is about 117.4545349981.

Subtracting 1620352 from its reverse (2530261), we obtain a palindrome (909909).

The spelling of 1620352 in words is "one million, six hundred twenty thousand, three hundred fifty-two".