1240434354 has 8 divisors (see below), whose sum is σ = 2480868720. Its totient is φ = 413478116.

The previous prime is 1240434343. The next prime is 1240434383. The reversal of 1240434354 is 4534340421.

It is a sphenic number, since it is the product of 3 distinct primes.

1240434354 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103369524 + ... + 103369535.

It is an arithmetic number, because the mean of its divisors is an integer number (310108590).

Almost surely, 2^1240434354 is an apocalyptic number.

1240434354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1240434354 is a wasteful number, since it uses less digits than its factorization.

1240434354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206739064.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 1240434354 is about 35219.8005956876. The cubic root of 1240434354 is about 1074.4624979053.

Adding to 1240434354 its reverse (4534340421), we get a palindrome (5774774775).

The spelling of 1240434354 in words is "one billion, two hundred forty million, four hundred thirty-four thousand, three hundred fifty-four".