1372866 has 48 divisors (see below), whose sum is σ = 3166464. Its totient is φ = 396000.

The previous prime is 1372849. The next prime is 1372867. The reversal of 1372866 is 6682731.

It is a super-2 number, since 2×1372866² = 3769522107912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

Its product of digits (12096) is a multiple of the sum of its prime divisors (108).

It is not an unprimeable number, because it can be changed into a prime (1372867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22476 + ... + 22536.

It is an arithmetic number, because the mean of its divisors is an integer number (65968).

2^1372866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583232).

1372866 is an abundant number, since it is smaller than the sum of its proper divisors (1793598).

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

1372866 is a wasteful number, since it uses less digits than its factorization.

1372866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 108 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 1372866 is about 1171.6936459672. The cubic root of 1372866 is about 111.1414477905.

It can be divided in two parts, 137 and 2866, that added together give a palindrome (3003).

The spelling of 1372866 in words is "one million, three hundred seventy-two thousand, eight hundred sixty-six".