8400005942 has 4 divisors (see below), whose sum is σ = 12600008916. Its totient is φ = 4200002970.

The previous prime is 8400005897. The next prime is 8400005951. The reversal of 8400005942 is 2495000048.

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

It is a junction number, because it is equal to n+sod(n) for n = 8400005899 and 8400005908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100001484 + ... + 2100001487.

It is an arithmetic number, because the mean of its divisors is an integer number (3150002229).

Almost surely, 2^8400005942 is an apocalyptic number.

8400005942 is a deficient number, since it is larger than the sum of its proper divisors (4200002974).

8400005942 is a wasteful number, since it uses less digits than its factorization.

8400005942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200002973.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 8400005942 is about 91651.5463153787. The cubic root of 8400005942 is about 2032.7931929492.

The spelling of 8400005942 in words is "eight billion, four hundred million, five thousand, nine hundred forty-two".