1801562 has 8 divisors (see below), whose sum is σ = 3088416. Its totient is φ = 772092.

The previous prime is 1801549. The next prime is 1801577. The reversal of 1801562 is 2651081.

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

It is a congruent number.

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, 64328 + ... + 64355.

It is an arithmetic number, because the mean of its divisors is an integer number (386052).

2^1801562 is an apocalyptic number.

1801562 is a deficient number, since it is larger than the sum of its proper divisors (1286854).

1801562 is a wasteful number, since it uses less digits than its factorization.

1801562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128692.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1801562 is about 1342.2227832964. Note that the first 3 decimals coincide. The cubic root of 1801562 is about 121.6792164032.

The spelling of 1801562 in words is "one million, eight hundred one thousand, five hundred sixty-two".