1412640 has 120 divisors (see below), whose sum is σ = 5031180. Its totient is φ = 373248.

The previous prime is 1412633. The next prime is 1412641. The reversal of 1412640 is 462141.

1412640 is a `hidden beast` number, since 14 + 12 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1411344 + 1296 = 1188^2 + 36^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (1412641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12906 + ... + 13014.

2^1412640 is an apocalyptic number.

1412640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1412640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515590).

1412640 is an abundant number, since it is smaller than the sum of its proper divisors (3618540).

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

1412640 is a wasteful number, since it uses less digits than its factorization.

1412640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1412640 is about 1188.5453293838. The cubic root of 1412640 is about 112.2045581379.

Adding to 1412640 its reverse (462141), we get a palindrome (1874781).

The spelling of 1412640 in words is "one million, four hundred twelve thousand, six hundred forty".