1240425355 has 24 divisors (see below), whose sum is σ = 1696673520. Its totient is φ = 867784320.

The previous prime is 1240425331. The next prime is 1240425359. The reversal of 1240425355 is 5535240421.

It is not a de Polignac number, because 1240425355 - 2²⁵ = 1206870923 is a prime.

It is a super-2 number, since 2×1240425355² = 3077310122653752050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240425359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22576 + ... + 54685.

It is an arithmetic number, because the mean of its divisors is an integer number (70694730).

Almost surely, 2^1240425355 is an apocalyptic number.

1240425355 is a deficient number, since it is larger than the sum of its proper divisors (456248165).

1240425355 is a wasteful number, since it uses less digits than its factorization.

1240425355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77311 (or 77298 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1240425355 is about 35219.6728406157. The cubic root of 1240425355 is about 1074.4598995919.

Adding to 1240425355 its reverse (5535240421), we get a palindrome (6775665776).

The spelling of 1240425355 in words is "one billion, two hundred forty million, four hundred twenty-five thousand, three hundred fifty-five".