1027796400 has 180 divisors, whose sum is σ = 3722114448. Its totient is φ = 262141440.

The previous prime is 1027796389. The next prime is 1027796401. The reversal of 1027796400 is 46977201.

It is a happy number.

1027796400 is a `hidden beast` number, since 1 + 0 + 2 + 7 + 7 + 9 + 640 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1027796401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 76594 + ... + 89006.

Almost surely, 2^1027796400 is an apocalyptic number.

1027796400 is a gapful number since it is divisible by the number (10) 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 1027796400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1861057224).

1027796400 is an abundant number, since it is smaller than the sum of its proper divisors (2694318048).

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

1027796400 is a wasteful number, since it uses less digits than its factorization.

1027796400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12460 (or 12446 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1027796400 is about 32059.2638717735. The cubic root of 1027796400 is about 1009.1809194340.

It can be divided in two parts, 1027796 and 400, that added together give a square (1028196 = 1014²).

The spelling of 1027796400 in words is "one billion, twenty-seven million, seven hundred ninety-six thousand, four hundred".