1362440 has 16 divisors (see below), whose sum is σ = 3065580. Its totient is φ = 544960.

The previous prime is 1362437. The next prime is 1362443. The reversal of 1362440 is 442631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1362437) and next prime (1362443).

It can be written as a sum of positive squares in 2 ways, for example, as 1094116 + 268324 = 1046^2 + 518^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1362443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16991 + ... + 17070.

2^1362440 is an apocalyptic number.

1362440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1362440 is an abundant number, since it is smaller than the sum of its proper divisors (1703140).

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

1362440 is a wasteful number, since it uses less digits than its factorization.

1362440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34072 (or 34068 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1362440 is about 1167.2360515337. The cubic root of 1362440 is about 110.8593842068.

The spelling of 1362440 in words is "one million, three hundred sixty-two thousand, four hundred forty".