1022872 has 8 divisors (see below), whose sum is σ = 1917900. Its totient is φ = 511432.

The previous prime is 1022869. The next prime is 1022881. The reversal of 1022872 is 2782201.

It is a tau number, because it is divible by the number of its divisors (8).

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, 63922 + ... + 63937.

2^1022872 is an apocalyptic number.

It is an amenable number.

1022872 is a deficient number, since it is larger than the sum of its proper divisors (895028).

1022872 is a wasteful number, since it uses less digits than its factorization.

1022872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127865 (or 127861 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1022872 is about 1011.3713462423. The cubic root of 1022872 is about 100.7566602128.

The spelling of 1022872 in words is "one million, twenty-two thousand, eight hundred seventy-two".