1464240 has 40 divisors (see below), whose sum is σ = 4539888. Its totient is φ = 390400.

The previous prime is 1464179. The next prime is 1464241. The reversal of 1464240 is 424641.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1464241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 3290.

2^1464240 is an apocalyptic number.

1464240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1464240 is an abundant number, since it is smaller than the sum of its proper divisors (3075648).

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

1464240 is a wasteful number, since it uses less digits than its factorization.

1464240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117 (or 6111 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1464240 is about 1210.0578498568. The cubic root of 1464240 is about 113.5544318990.

Adding to 1464240 its reverse (424641), we get a palindrome (1888881).

The spelling of 1464240 in words is "one million, four hundred sixty-four thousand, two hundred forty".