3420331402 has 4 divisors (see below), whose sum is σ = 5130497106. Its totient is φ = 1710165700.

The previous prime is 3420331391. The next prime is 3420331457. The reversal of 3420331402 is 2041330243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2041330243 = 8293 ⋅246151.

It can be written as a sum of positive squares in only one way, i.e., 3173181561 + 247149841 = 56331^2 + 15721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855082849 + ... + 855082852.

Almost surely, 2^3420331402 is an apocalyptic number.

3420331402 is a deficient number, since it is larger than the sum of its proper divisors (1710165704).

3420331402 is a wasteful number, since it uses less digits than its factorization.

3420331402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710165703.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3420331402 is about 58483.5994275318. The cubic root of 3420331402 is about 1506.6859179826.

Adding to 3420331402 its reverse (2041330243), we get a palindrome (5461661645).

The spelling of 3420331402 in words is "three billion, four hundred twenty million, three hundred thirty-one thousand, four hundred two".