79459380 has 480 divisors, whose sum is σ = 341510400. Its totient is φ = 15240960.

The previous prime is 79459379. The next prime is 79459381. The reversal of 79459380 is 8395497.

It is an interprime number because it is at equal distance from previous prime (79459379) and next prime (79459381).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79459381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6112254 + ... + 6112266.

It is an arithmetic number, because the mean of its divisors is an integer number (711480).

Almost surely, 2^79459380 is an apocalyptic number.

79459380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79459380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170755200).

79459380 is an abundant number, since it is smaller than the sum of its proper divisors (262051020).

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

79459380 is a wasteful number, since it uses less digits than its factorization.

79459380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 79459380 is about 8913.9991025353. Note that the first 3 decimals coincide. The cubic root of 79459380 is about 429.9141346487.

The spelling of 79459380 in words is "seventy-nine million, four hundred fifty-nine thousand, three hundred eighty".