340121425 has 36 divisors (see below), whose sum is σ = 499410496. Its totient is φ = 225086400.

The previous prime is 340121423. The next prime is 340121437. The reversal of 340121425 is 524121043.

It is not a de Polignac number, because 340121425 - 2¹ = 340121423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340121396 and 340121405.

It is not an unprimeable number, because it can be changed into a prime (340121423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 146020 + ... + 148330.

Almost surely, 2^340121425 is an apocalyptic number.

340121425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340121425 is a deficient number, since it is larger than the sum of its proper divisors (159289071).

340121425 is a wasteful number, since it uses less digits than its factorization.

340121425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 340121425 is about 18442.3812182701. The cubic root of 340121425 is about 698.0362820252.

Adding to 340121425 its reverse (524121043), we get a palindrome (864242468).

The spelling of 340121425 in words is "three hundred forty million, one hundred twenty-one thousand, four hundred twenty-five".