1023972 has 12 divisors (see below), whose sum is σ = 2389296. Its totient is φ = 341320.

The previous prime is 1023949. The next prime is 1023973. The reversal of 1023972 is 2793201.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1023973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42654 + ... + 42677.

It is an arithmetic number, because the mean of its divisors is an integer number (199108).

2^1023972 is an apocalyptic number.

1023972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023972 is an abundant number, since it is smaller than the sum of its proper divisors (1365324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023972 is a wasteful number, since it uses less digits than its factorization.

1023972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85338 (or 85336 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1023972 is about 1011.9150161945. The cubic root of 1023972 is about 100.7927652908.

The spelling of 1023972 in words is "one million, twenty-three thousand, nine hundred seventy-two".