1240534216 has 32 divisors (see below), whose sum is σ = 2346252480. Its totient is φ = 614891200.

The previous prime is 1240534201. The next prime is 1240534231. The reversal of 1240534216 is 6124350421.

It is an interprime number because it is at equal distance from previous prime (1240534201) and next prime (1240534231).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488871 + ... + 491401.

It is an arithmetic number, because the mean of its divisors is an integer number (73320390).

Almost surely, 2^1240534216 is an apocalyptic number.

It is an amenable number.

1240534216 is a deficient number, since it is larger than the sum of its proper divisors (1105718264).

1240534216 is a wasteful number, since it uses less digits than its factorization.

1240534216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1240534216 is about 35221.2182639954. The cubic root of 1240534216 is about 1074.4913305730.

Adding to 1240534216 its reverse (6124350421), we get a palindrome (7364884637).

The spelling of 1240534216 in words is "one billion, two hundred forty million, five hundred thirty-four thousand, two hundred sixteen".