1240522 has 4 divisors (see below), whose sum is σ = 1860786. Its totient is φ = 620260.

The previous prime is 1240517. The next prime is 1240523. The reversal of 1240522 is 2250421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 881721 + 358801 = 939^2 + 599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1240496 and 1240505.

It is not an unprimeable number, because it can be changed into a prime (1240523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310129 + ... + 310132.

2^1240522 is an apocalyptic number.

1240522 is a deficient number, since it is larger than the sum of its proper divisors (620264).

1240522 is an equidigital number, since it uses as much as digits as its factorization.

1240522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620263.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1240522 is about 1113.7872328232. The cubic root of 1240522 is about 107.4487803590.

Adding to 1240522 its reverse (2250421), we get a palindrome (3490943).

The spelling of 1240522 in words is "one million, two hundred forty thousand, five hundred twenty-two".