78270300 has 108 divisors (see below), whose sum is σ = 254499336. Its totient is φ = 20865600.

The previous prime is 78270299. The next prime is 78270317. The reversal of 78270300 is 307287.

It is a tau number, because it is divible by the number of its divisors (108).

It is a super-2 number, since 2×78270300² = 12252479724180000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22690 + ... + 25910.

Almost surely, 2^78270300 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 78270300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127249668).

78270300 is an abundant number, since it is smaller than the sum of its proper divisors (176229036).

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

78270300 is a wasteful number, since it uses less digits than its factorization.

78270300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 78270300 is about 8847.0503559096. The cubic root of 78270300 is about 427.7588460104.

Adding to 78270300 its reverse (307287), we get a palindrome (78577587).

The spelling of 78270300 in words is "seventy-eight million, two hundred seventy thousand, three hundred".