342509425 has 12 divisors (see below), whose sum is σ = 429093196. Its totient is φ = 271180800.

The previous prime is 342509423. The next prime is 342509471. The reversal of 342509425 is 524905243.

It can be written as a sum of positive squares in 6 ways, for example, as 1442401 + 341067024 = 1201^2 + 18468^2 .

It is not a de Polignac number, because 342509425 - 2¹ = 342509423 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342509423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68196 + ... + 73045.

Almost surely, 2^342509425 is an apocalyptic number.

It is an amenable number.

342509425 is a deficient number, since it is larger than the sum of its proper divisors (86583771).

342509425 is a wasteful number, since it uses less digits than its factorization.

342509425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141348 (or 141343 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 342509425 is about 18507.0101583157. The cubic root of 342509425 is about 699.6661162808. Note that the first 3 decimals are identical.

The spelling of 342509425 in words is "three hundred forty-two million, five hundred nine thousand, four hundred twenty-five".