289626142 has 16 divisors (see below), whose sum is σ = 468538560. Its totient is φ = 133479072.

The previous prime is 289626137. The next prime is 289626187. The reversal of 289626142 is 241626982.

It is a junction number, because it is equal to n+sod(n) for n = 289626095 and 289626104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10948 + ... + 26440.

It is an arithmetic number, because the mean of its divisors is an integer number (29283660).

Almost surely, 2^289626142 is an apocalyptic number.

289626142 is a deficient number, since it is larger than the sum of its proper divisors (178912418).

289626142 is a wasteful number, since it uses less digits than its factorization.

289626142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16227.

The product of its digits is 82944, while the sum is 40.

The square root of 289626142 is about 17018.4059770591. The cubic root of 289626142 is about 661.6260350479.

The spelling of 289626142 in words is "two hundred eighty-nine million, six hundred twenty-six thousand, one hundred forty-two".