1239472 has 40 divisors (see below), whose sum is σ = 2656080. Its totient is φ = 556800.

The previous prime is 1239461. The next prime is 1239481. The reversal of 1239472 is 2749321.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1239472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12222 + ... + 12322.

It is an arithmetic number, because the mean of its divisors is an integer number (66402).

2^1239472 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 1239472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328040).

1239472 is an abundant number, since it is smaller than the sum of its proper divisors (1416608).

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

1239472 is a wasteful number, since it uses less digits than its factorization.

1239472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 175 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 1239472 is about 1113.3157683245. The cubic root of 1239472 is about 107.4184562789.

It can be divided in two parts, 1239 and 472, that added together give a triangular number (1711 = T₅₈).

The spelling of 1239472 in words is "one million, two hundred thirty-nine thousand, four hundred seventy-two".