1320240434 has 48 divisors (see below), whose sum is σ = 2242937088. Its totient is φ = 581357568.

The previous prime is 1320240421. The next prime is 1320240443. The reversal of 1320240434 is 4340420231.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 623762 + ... + 625874.

It is an arithmetic number, because the mean of its divisors is an integer number (46727856).

Almost surely, 2^1320240434 is an apocalyptic number.

1320240434 is a deficient number, since it is larger than the sum of its proper divisors (922696654).

1320240434 is a wasteful number, since it uses less digits than its factorization.

1320240434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1320240434 is about 36335.1129625325. The cubic root of 1320240434 is about 1097.0279091693.

Adding to 1320240434 its reverse (4340420231), we get a palindrome (5660660665).

The spelling of 1320240434 in words is "one billion, three hundred twenty million, two hundred forty thousand, four hundred thirty-four".