1013240 has 32 divisors (see below), whose sum is σ = 2317680. Its totient is φ = 398592.

The previous prime is 1013239. The next prime is 1013249. The reversal of 1013240 is 423101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013249) 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, 2747 + ... + 3093.

2^1013240 is an apocalyptic number.

1013240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158840).

1013240 is an abundant number, since it is smaller than the sum of its proper divisors (1304440).

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

1013240 is a wasteful number, since it uses less digits than its factorization.

1013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1013240 is about 1006.5982316694. The cubic root of 1013240 is about 100.4393997838.

Adding to 1013240 its reverse (423101), we get a palindrome (1436341).

The spelling of 1013240 in words is "one million, thirteen thousand, two hundred forty".