1025194800 has 360 divisors, whose sum is σ = 3908702208. Its totient is φ = 224985600.

The previous prime is 1025194787. The next prime is 1025194811. The reversal of 1025194800 is 84915201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8072337 + ... + 8072463.

Almost surely, 2^1025194800 is an apocalyptic number.

1025194800 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 1025194800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1954351104).

1025194800 is an abundant number, since it is smaller than the sum of its proper divisors (2883507408).

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

1025194800 is a wasteful number, since it uses less digits than its factorization.

1025194800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1025194800 is about 32018.6633075149. The cubic root of 1025194800 is about 1008.3287067307.

The spelling of 1025194800 in words is "one billion, twenty-five million, one hundred ninety-four thousand, eight hundred".