1243460 has 24 divisors (see below), whose sum is σ = 2647680. Its totient is φ = 490464.

The previous prime is 1243439. The next prime is 1243471. The reversal of 1243460 is 643421.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (110320).

2^1243460 is an apocalyptic number.

1243460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243460 is an abundant number, since it is smaller than the sum of its proper divisors (1404220).

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

1243460 is a wasteful number, since it uses less digits than its factorization.

1243460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 873 counting only the distinct ones).

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

The square root of 1243460 is about 1115.1053761865. The cubic root of 1243460 is about 107.5335392014.

Adding to 1243460 its reverse (643421), we get a palindrome (1886881).

The spelling of 1243460 in words is "one million, two hundred forty-three thousand, four hundred sixty".