78379224 has 192 divisors, whose sum is σ = 255104640. Its totient is φ = 19837440.

The previous prime is 78379219. The next prime is 78379247. The reversal of 78379224 is 42297387.

It is a super-2 number, since 2×78379224² = 12286605509684352, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 944287 + ... + 944369.

It is an arithmetic number, because the mean of its divisors is an integer number (1328670).

Almost surely, 2^78379224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78379224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127552320).

78379224 is an abundant number, since it is smaller than the sum of its proper divisors (176725416).

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

78379224 is a wasteful number, since it uses less digits than its factorization.

78379224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 179 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 78379224 is about 8853.2041657244. The cubic root of 78379224 is about 427.9571826617.

The spelling of 78379224 in words is "seventy-eight million, three hundred seventy-nine thousand, two hundred twenty-four".