8012400 has 120 divisors (see below), whose sum is σ = 28045824. Its totient is φ = 1939200.

The previous prime is 8012399. The next prime is 8012401. The reversal of 8012400 is 42108.

It is an interprime number because it is at equal distance from previous prime (8012399) and next prime (8012401).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 8012400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012401) 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, 12897 + ... + 13503.

Almost surely, 2^8012400 is an apocalyptic number.

8012400 is a gapful number since it is divisible by the number (80) 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 8012400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14022912).

8012400 is an abundant number, since it is smaller than the sum of its proper divisors (20033424).

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

8012400 is a wasteful number, since it uses less digits than its factorization.

8012400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 8012400 is about 2830.6183070135. The cubic root of 8012400 is about 200.1032799904.

Adding to 8012400 its reverse (42108), we get a palindrome (8054508).

The spelling of 8012400 in words is "eight million, twelve thousand, four hundred".