78106044 has 24 divisors (see below), whose sum is σ = 184297680. Its totient is φ = 25742464.

The previous prime is 78106043. The next prime is 78106069. The reversal of 78106044 is 44060187.

It is a super-2 number, since 2×78106044² = 12201108218659872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78106043) 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, 35499 + ... + 37634.

It is an arithmetic number, because the mean of its divisors is an integer number (7679070).

Almost surely, 2^78106044 is an apocalyptic number.

It is an amenable number.

78106044 is an abundant number, since it is smaller than the sum of its proper divisors (106191636).

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

78106044 is a wasteful number, since it uses less digits than its factorization.

78106044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73229 (or 73227 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 78106044 is about 8837.7623864868. The cubic root of 78106044 is about 427.4594086147.

The spelling of 78106044 in words is "seventy-eight million, one hundred six thousand, forty-four".