342749942 has 4 divisors (see below), whose sum is σ = 514124916. Its totient is φ = 171374970.

The previous prime is 342749941. The next prime is 342749963. The reversal of 342749942 is 249947243.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 342749893 and 342749902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342749941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85687484 + ... + 85687487.

It is an arithmetic number, because the mean of its divisors is an integer number (128531229).

Almost surely, 2^342749942 is an apocalyptic number.

342749942 is a deficient number, since it is larger than the sum of its proper divisors (171374974).

342749942 is a wasteful number, since it uses less digits than its factorization.

342749942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171374973.

The product of its digits is 435456, while the sum is 44.

The square root of 342749942 is about 18513.5070151498. The cubic root of 342749942 is about 699.8298511623.

The spelling of 342749942 in words is "three hundred forty-two million, seven hundred forty-nine thousand, nine hundred forty-two".