42920833 has 8 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 41373840.

The previous prime is 42920827. The next prime is 42920863. The reversal of 42920833 is 33802924.

42920833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42920833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42920795 and 42920804.

It is not an unprimeable number, because it can be changed into a prime (42920863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5766 + ... + 10912.

It is an arithmetic number, because the mean of its divisors is an integer number (5559840).

Almost surely, 2^42920833 is an apocalyptic number.

It is an amenable number.

42920833 is a deficient number, since it is larger than the sum of its proper divisors (1557887).

42920833 is a wasteful number, since it uses less digits than its factorization.

42920833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 42920833 is about 6551.3993161767. The cubic root of 42920833 is about 350.1246712327.

The spelling of 42920833 in words is "forty-two million, nine hundred twenty thousand, eight hundred thirty-three".