1240364 has 6 divisors (see below), whose sum is σ = 2170644. Its totient is φ = 620180.

The previous prime is 1240363. The next prime is 1240387. The reversal of 1240364 is 4630421.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1240361) 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 as a sum of consecutive naturals, namely, 155042 + ... + 155049.

It is an arithmetic number, because the mean of its divisors is an integer number (361774).

2^1240364 is an apocalyptic number.

It is an amenable number.

1240364 is a deficient number, since it is larger than the sum of its proper divisors (930280).

1240364 is a wasteful number, since it uses less digits than its factorization.

1240364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310095 (or 310093 counting only the distinct ones).

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

The square root of 1240364 is about 1113.7163013982. The cubic root of 1240364 is about 107.4442184009. Note that the first 3 decimals are identical.

Adding to 1240364 its reverse (4630421), we get a palindrome (5870785).

The spelling of 1240364 in words is "one million, two hundred forty thousand, three hundred sixty-four".