42920942 has 8 divisors (see below), whose sum is σ = 65437032. Its totient is φ = 21108600.

The previous prime is 42920939. The next prime is 42920951. The reversal of 42920942 is 24902924.

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

It is a junction number, because it is equal to n+sod(n) for n = 42920899 and 42920908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175784 + ... + 176027.

It is an arithmetic number, because the mean of its divisors is an integer number (8179629).

Almost surely, 2^42920942 is an apocalyptic number.

42920942 is a deficient number, since it is larger than the sum of its proper divisors (22516090).

42920942 is a wasteful number, since it uses less digits than its factorization.

42920942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351874.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42920942 is about 6551.4076350049. The cubic root of 42920942 is about 350.1249676199.

The spelling of 42920942 in words is "forty-two million, nine hundred twenty thousand, nine hundred forty-two".