1413540 has 36 divisors (see below), whose sum is σ = 4288284. Its totient is φ = 376896.

The previous prime is 1413527. The next prime is 1413541. The reversal of 1413540 is 453141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207936 + 1205604 = 456^2 + 1098^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1413541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3747 + ... + 4106.

It is an arithmetic number, because the mean of its divisors is an integer number (119119).

2^1413540 is an apocalyptic number.

1413540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1413540 is an abundant number, since it is smaller than the sum of its proper divisors (2874744).

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

1413540 is a wasteful number, since it uses less digits than its factorization.

1413540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868 (or 7863 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1413540 is about 1188.9238831818. The cubic root of 1413540 is about 112.2283817741.

Adding to 1413540 its reverse (453141), we get a palindrome (1866681).

It can be divided in two parts, 1413 and 540, that added together give a triangular number (1953 = T₆₂).

The spelling of 1413540 in words is "one million, four hundred thirteen thousand, five hundred forty".