1272024 has 80 divisors (see below), whose sum is σ = 3862320. Its totient is φ = 388800.

The previous prime is 1272001. The next prime is 1272043. The reversal of 1272024 is 4202721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1271988 and 1272006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8349 + ... + 8499.

It is an arithmetic number, because the mean of its divisors is an integer number (48279).

2^1272024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1931160).

1272024 is an abundant number, since it is smaller than the sum of its proper divisors (2590296).

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

1272024 is a wasteful number, since it uses less digits than its factorization.

1272024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1272024 is about 1127.8404142431. The cubic root of 1272024 is about 108.3507117420.

Adding to 1272024 its reverse (4202721), we get a palindrome (5474745).

The spelling of 1272024 in words is "one million, two hundred seventy-two thousand, twenty-four".