838090428 has 48 divisors (see below), whose sum is σ = 2246651904. Its totient is φ = 238196160.

The previous prime is 838090411. The next prime is 838090433. The reversal of 838090428 is 824090838.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 838090428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10075 + ... + 42162.

It is an arithmetic number, because the mean of its divisors is an integer number (46805248).

Almost surely, 2^838090428 is an apocalyptic number.

It is an amenable number.

838090428 is an abundant number, since it is smaller than the sum of its proper divisors (1408561476).

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

838090428 is a wasteful number, since it uses less digits than its factorization.

838090428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52442 (or 52440 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 838090428 is about 28949.7915018399. The cubic root of 838090428 is about 942.8232713399.

The spelling of 838090428 in words is "eight hundred thirty-eight million, ninety thousand, four hundred twenty-eight".