78219050 has 48 divisors (see below), whose sum is σ = 179071872. Its totient is φ = 24753600.

The previous prime is 78219049. The next prime is 78219059. The reversal of 78219050 is 5091287.

It is a super-2 number, since 2×78219050² = 12236439565805000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78218998 and 78219016.

It is not an unprimeable number, because it can be changed into a prime (78219059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4046 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (3730664).

Almost surely, 2^78219050 is an apocalyptic number.

78219050 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78219050 is an abundant number, since it is smaller than the sum of its proper divisors (100852822).

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

78219050 is a wasteful number, since it uses less digits than its factorization.

78219050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17223 (or 17218 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 78219050 is about 8844.1534360277. The cubic root of 78219050 is about 427.6654626647.

The spelling of 78219050 in words is "seventy-eight million, two hundred nineteen thousand, fifty".