1620346 has 32 divisors (see below), whose sum is σ = 3104640. Its totient is φ = 616896.

The previous prime is 1620337. The next prime is 1620347. The reversal of 1620346 is 6430261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5125 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (97020).

2^1620346 is an apocalyptic number.

1620346 is a deficient number, since it is larger than the sum of its proper divisors (1484294).

1620346 is a wasteful number, since it uses less digits than its factorization.

1620346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1620346 is about 1272.9281205158. The cubic root of 1620346 is about 117.4543900238.

The spelling of 1620346 in words is "one million, six hundred twenty thousand, three hundred forty-six".