340408425 has 96 divisors (see below), whose sum is σ = 697669632. Its totient is φ = 142894080.

The previous prime is 340408423. The next prime is 340408429. The reversal of 340408425 is 524804043.

It is not a de Polignac number, because 340408425 - 2¹ = 340408423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340408392 and 340408401.

It is not an unprimeable number, because it can be changed into a prime (340408423) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 383332 + ... + 384218.

It is an arithmetic number, because the mean of its divisors is an integer number (7267392).

Almost surely, 2^340408425 is an apocalyptic number.

340408425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340408425 is an abundant number, since it is smaller than the sum of its proper divisors (357261207).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340408425 is a wasteful number, since it uses less digits than its factorization.

340408425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 340408425 is about 18450.1605684070. The cubic root of 340408425 is about 698.2325649559.

The spelling of 340408425 in words is "three hundred forty million, four hundred eight thousand, four hundred twenty-five".