1385772 has 24 divisors (see below), whose sum is σ = 3424176. Its totient is φ = 434688.

The previous prime is 1385767. The next prime is 1385777. The reversal of 1385772 is 2775831.

It is an interprime number because it is at equal distance from previous prime (1385767) and next prime (1385777).

It is not an unprimeable number, because it can be changed into a prime (1385777) 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, 3193 + ... + 3600.

It is an arithmetic number, because the mean of its divisors is an integer number (142674).

2^1385772 is an apocalyptic number.

1385772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1385772 is an abundant number, since it is smaller than the sum of its proper divisors (2038404).

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

1385772 is a wasteful number, since it uses less digits than its factorization.

1385772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817 (or 6815 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 1385772 is about 1177.1881752719. The cubic root of 1385772 is about 111.4886339101.

The spelling of 1385772 in words is "one million, three hundred eighty-five thousand, seven hundred seventy-two".