78054030 has 128 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 20085408.

The previous prime is 78054029. The next prime is 78054047. The reversal of 78054030 is 3045087.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 78053985 and 78054003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 940369 + ... + 940451.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^78054030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78054030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109105920).

78054030 is an abundant number, since it is smaller than the sum of its proper divisors (140157810).

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

78054030 is an equidigital number, since it uses as much as digits as its factorization.

78054030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 78054030 is about 8834.8191832091. The cubic root of 78054030 is about 427.3644999929.

The spelling of 78054030 in words is "seventy-eight million, fifty-four thousand, thirty".