1245340 has 24 divisors (see below), whose sum is σ = 2655072. Its totient is φ = 490560.

The previous prime is 1245331. The next prime is 1245353. The reversal of 1245340 is 435421.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 982 + ... + 1858.

It is an arithmetic number, because the mean of its divisors is an integer number (110628).

2^1245340 is an apocalyptic number.

1245340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245340 is an abundant number, since it is smaller than the sum of its proper divisors (1409732).

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

1245340 is a wasteful number, since it uses less digits than its factorization.

1245340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1245340 is about 1115.9480274636. The cubic root of 1245340 is about 107.5877056014.

The spelling of 1245340 in words is "one million, two hundred forty-five thousand, three hundred forty".