942217881 has 8 divisors (see below), whose sum is σ = 1370498784. Its totient is φ = 571041120.

The previous prime is 942217879. The next prime is 942217889. The reversal of 942217881 is 188712249.

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

It is not a de Polignac number, because 942217881 - 2¹ = 942217879 is a prime.

It is a super-2 number, since 2×942217881² = 1775549070552260322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (942217889) 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, 14275996 + ... + 14276061.

It is an arithmetic number, because the mean of its divisors is an integer number (171312348).

Almost surely, 2^942217881 is an apocalyptic number.

It is an amenable number.

942217881 is a deficient number, since it is larger than the sum of its proper divisors (428280903).

942217881 is a wasteful number, since it uses less digits than its factorization.

942217881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552071.

The product of its digits is 64512, while the sum is 42.

The square root of 942217881 is about 30695.5677745175. The cubic root of 942217881 is about 980.3559310341.

The spelling of 942217881 in words is "nine hundred forty-two million, two hundred seventeen thousand, eight hundred eighty-one".