1624642 has 8 divisors (see below), whose sum is σ = 2466576. Its totient is φ = 802452.

The previous prime is 1624627. The next prime is 1624661. The reversal of 1624642 is 2464261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4728 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (308322).

2^1624642 is an apocalyptic number.

1624642 is a deficient number, since it is larger than the sum of its proper divisors (841934).

1624642 is an equidigital number, since it uses as much as digits as its factorization.

1624642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872.

The product of its digits is 2304, while the sum is 25.

The square root of 1624642 is about 1274.6144515107. The cubic root of 1624642 is about 117.5581001333.

The spelling of 1624642 in words is "one million, six hundred twenty-four thousand, six hundred forty-two".