890765142 has 16 divisors (see below), whose sum is σ = 1786581360. Its totient is φ = 296079872.

The previous prime is 890765119. The next prime is 890765143. The reversal of 890765142 is 241567098.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 890765094 and 890765103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890765143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208167 + ... + 212402.

It is an arithmetic number, because the mean of its divisors is an integer number (111661335).

Almost surely, 2^890765142 is an apocalyptic number.

890765142 is an abundant number, since it is smaller than the sum of its proper divisors (895816218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

890765142 is a wasteful number, since it uses less digits than its factorization.

890765142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420927.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 890765142 is about 29845.6888344029. The cubic root of 890765142 is about 962.1757444201.

The spelling of 890765142 in words is "eight hundred ninety million, seven hundred sixty-five thousand, one hundred forty-two".