342509437 has 4 divisors (see below), whose sum is σ = 343283040. Its totient is φ = 341735836.

The previous prime is 342509423. The next prime is 342509471. The reversal of 342509437 is 734905243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 734905243 = 557 ⋅1319399.

It is a cyclic number.

It is not a de Polignac number, because 342509437 - 2⁷ = 342509309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342509396 and 342509405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342509737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386137 + ... + 387022.

It is an arithmetic number, because the mean of its divisors is an integer number (85820760).

Almost surely, 2^342509437 is an apocalyptic number.

It is an amenable number.

342509437 is a deficient number, since it is larger than the sum of its proper divisors (773603).

342509437 is an equidigital number, since it uses as much as digits as its factorization.

342509437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773602.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 342509437 is about 18507.0104825172. The cubic root of 342509437 is about 699.6661244518. Note that the first 3 decimals are identical.

The spelling of 342509437 in words is "three hundred forty-two million, five hundred nine thousand, four hundred thirty-seven".