1572678400 has 108 divisors (see below), whose sum is σ = 3948591024. Its totient is φ = 620032000.

The previous prime is 1572678397. The next prime is 1572678407. The reversal of 1572678400 is 48762751.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1572678407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452670 + ... + 456130.

It is an arithmetic number, because the mean of its divisors is an integer number (36561028).

Almost surely, 2^1572678400 is an apocalyptic number.

1572678400 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 1572678400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1974295512).

1572678400 is an abundant number, since it is smaller than the sum of its proper divisors (2375912624).

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

1572678400 is an equidigital number, since it uses as much as digits as its factorization.

1572678400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1572678400 is about 39657.0094686929. The cubic root of 1572678400 is about 1162.9114341260.

The spelling of 1572678400 in words is "one billion, five hundred seventy-two million, six hundred seventy-eight thousand, four hundred".