164428038 has 24 divisors (see below), whose sum is σ = 356841576. Its totient is φ = 54720000.

The previous prime is 164428027. The next prime is 164428049. The reversal of 164428038 is 830824461.

164428038 is a `hidden beast` number, since 1 + 644 + 2 + 8 + 0 + 3 + 8 = 666.

164428038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164428027) and next prime (164428049).

It is a super-3 number, since 3×164428038³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164427993 and 164428011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4413 + ... + 18663.

It is an arithmetic number, because the mean of its divisors is an integer number (14868399).

Almost surely, 2^164428038 is an apocalyptic number.

164428038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

164428038 is an abundant number, since it is smaller than the sum of its proper divisors (192413538).

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

164428038 is a wasteful number, since it uses less digits than its factorization.

164428038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900 (or 14897 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 164428038 is about 12822.9496606670. The cubic root of 164428038 is about 547.8461637734.

The spelling of 164428038 in words is "one hundred sixty-four million, four hundred twenty-eight thousand, thirty-eight".