3215429442 has 12 divisors (see below), whose sum is σ = 6966763830. Its totient is φ = 1071809808.

The previous prime is 3215429431. The next prime is 3215429473. The reversal of 3215429442 is 2449245123.

It is a happy number.

3215429442 is a `hidden beast` number, since 3 + 21 + 542 + 94 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2891105361 + 324324081 = 53769^2 + 18009^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3215429397 and 3215429406.

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 in 5 ways as a sum of consecutive naturals, for example, 89317467 + ... + 89317502.

Almost surely, 2^3215429442 is an apocalyptic number.

3215429442 is an abundant number, since it is smaller than the sum of its proper divisors (3751334388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3215429442 is a wasteful number, since it uses less digits than its factorization.

3215429442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178634977 (or 178634974 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 3215429442 is about 56704.7567845944. The cubic root of 3215429442 is about 1475.9772425821.

The spelling of 3215429442 in words is "three billion, two hundred fifteen million, four hundred twenty-nine thousand, four hundred forty-two".