1463240 has 32 divisors (see below), whose sum is σ = 3327480. Its totient is φ = 579072.

The previous prime is 1463233. The next prime is 1463243. The reversal of 1463240 is 423641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 813604 + 649636 = 902^2 + 806^2 .

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 (1463243) 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, 6164 + ... + 6396.

2^1463240 is an apocalyptic number.

1463240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1463240 is an abundant number, since it is smaller than the sum of its proper divisors (1864240).

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

1463240 is a wasteful number, since it uses less digits than its factorization.

1463240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 397 counting only the distinct ones).

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

The square root of 1463240 is about 1209.6445758982. The cubic root of 1463240 is about 113.5285754155.

Adding to 1463240 its reverse (423641), we get a palindrome (1886881).

The spelling of 1463240 in words is "one million, four hundred sixty-three thousand, two hundred forty".