3420345242 has 4 divisors (see below), whose sum is σ = 5130517866. Its totient is φ = 1710172620.

The previous prime is 3420345221. The next prime is 3420345263. The reversal of 3420345242 is 2425430243.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (3420345221) and next prime (3420345263).

It can be written as a sum of positive squares in only one way, i.e., 2466214921 + 954130321 = 49661^2 + 30889^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855086309 + ... + 855086312.

Almost surely, 2^3420345242 is an apocalyptic number.

3420345242 is a deficient number, since it is larger than the sum of its proper divisors (1710172624).

3420345242 is a wasteful number, since it uses less digits than its factorization.

3420345242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710172623.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 3420345242 is about 58483.7177511827. The cubic root of 3420345242 is about 1506.6879501936.

Adding to 3420345242 its reverse (2425430243), we get a palindrome (5845775485).

The spelling of 3420345242 in words is "three billion, four hundred twenty million, three hundred forty-five thousand, two hundred forty-two".