1340203025 has 24 divisors (see below), whose sum is σ = 1911395520. Its totient is φ = 913124160.

The previous prime is 1340203021. The next prime is 1340203043. The reversal of 1340203025 is 5203020431.

It is a happy number.

It is not a de Polignac number, because 1340203025 - 2² = 1340203021 is a prime.

It is a super-2 number, since 2×1340203025² = 3592288296438301250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1340202988 and 1340203006.

It is not an unprimeable number, because it can be changed into a prime (1340203021) 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, 3086 + ... + 51864.

It is an arithmetic number, because the mean of its divisors is an integer number (79641480).

Almost surely, 2^1340203025 is an apocalyptic number.

It is an amenable number.

1340203025 is a deficient number, since it is larger than the sum of its proper divisors (571192495).

1340203025 is a wasteful number, since it uses less digits than its factorization.

1340203025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48953 (or 48948 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1340203025 is about 36608.7834405898. The cubic root of 1340203025 is about 1102.5294476771.

Adding to 1340203025 its reverse (5203020431), we get a palindrome (6543223456).

The spelling of 1340203025 in words is "one billion, three hundred forty million, two hundred three thousand, twenty-five".