3402421243 has 4 divisors (see below), whose sum is σ = 3664145968. Its totient is φ = 3140696520.

The previous prime is 3402421237. The next prime is 3402421249. The reversal of 3402421243 is 3421242043.

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: 3421242043 = 9067 ⋅377329.

It is an interprime number because it is at equal distance from previous prime (3402421237) and next prime (3402421249).

It is not a de Polignac number, because 3402421243 - 2¹³ = 3402413051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3402421249) 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, 130862343 + ... + 130862368.

It is an arithmetic number, because the mean of its divisors is an integer number (916036492).

Almost surely, 2^3402421243 is an apocalyptic number.

3402421243 is a deficient number, since it is larger than the sum of its proper divisors (261724725).

3402421243 is a wasteful number, since it uses less digits than its factorization.

3402421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261724724.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 3402421243 is about 58330.2772408978. The cubic root of 3402421243 is about 1504.0514536671.

Adding to 3402421243 its reverse (3421242043), we get a palindrome (6823663286).

The spelling of 3402421243 in words is "three billion, four hundred two million, four hundred twenty-one thousand, two hundred forty-three".