890029428 has 12 divisors (see below), whose sum is σ = 2076735360. Its totient is φ = 296676472.

The previous prime is 890029423. The next prime is 890029429. The reversal of 890029428 is 824920098.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 890029428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890029423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37084548 + ... + 37084571.

It is an arithmetic number, because the mean of its divisors is an integer number (173061280).

Almost surely, 2^890029428 is an apocalyptic number.

It is an amenable number.

890029428 is an abundant number, since it is smaller than the sum of its proper divisors (1186705932).

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

890029428 is a wasteful number, since it uses less digits than its factorization.

890029428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74169126 (or 74169124 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 890029428 is about 29833.3609906762. The cubic root of 890029428 is about 961.9107732880.

The spelling of 890029428 in words is "eight hundred ninety million, twenty-nine thousand, four hundred twenty-eight".