1399572 has 24 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 466488.

The previous prime is 1399553. The next prime is 1399577. The reversal of 1399572 is 2759931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6372 + ... + 6587.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

2^1399572 is an apocalyptic number.

1399572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1399572 is an abundant number, since it is smaller than the sum of its proper divisors (2229228).

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

1399572 is a wasteful number, since it uses less digits than its factorization.

1399572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972 (or 12964 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 1399572 is about 1183.0350797842. The cubic root of 1399572 is about 111.8574930732.

The spelling of 1399572 in words is "one million, three hundred ninety-nine thousand, five hundred seventy-two".