1263972 has 12 divisors (see below), whose sum is σ = 2949296. Its totient is φ = 421320.

The previous prime is 1263961. The next prime is 1263973. The reversal of 1263972 is 2793621.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1263973) 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, 52654 + ... + 52677.

2^1263972 is an apocalyptic number.

1263972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1263972 is an abundant number, since it is smaller than the sum of its proper divisors (1685324).

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

1263972 is a wasteful number, since it uses less digits than its factorization.

1263972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105338 (or 105336 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 1263972 is about 1124.2650932943. The cubic root of 1263972 is about 108.1216051369.

The spelling of 1263972 in words is "one million, two hundred sixty-three thousand, nine hundred seventy-two".