8438422942 has 32 divisors (see below), whose sum is σ = 13649264640. Its totient is φ = 3902791200.

The previous prime is 8438422907. The next prime is 8438422961. The reversal of 8438422942 is 2492248348.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 8438422892 and 8438422901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178659 + ... + 220897.

It is an arithmetic number, because the mean of its divisors is an integer number (426539520).

Almost surely, 2^8438422942 is an apocalyptic number.

8438422942 is a deficient number, since it is larger than the sum of its proper divisors (5210841698).

8438422942 is a wasteful number, since it uses less digits than its factorization.

8438422942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42408.

The product of its digits is 884736, while the sum is 46.

The square root of 8438422942 is about 91860.8890769080. The cubic root of 8438422942 is about 2035.8874393701.

The spelling of 8438422942 in words is "eight billion, four hundred thirty-eight million, four hundred twenty-two thousand, nine hundred forty-two".