1204090000 has 75 divisors (see below), whose sum is σ = 2923647727. Its totient is φ = 480248000.

The previous prime is 1204089979. The next prime is 1204090067. The reversal of 1204090000 is 904021.

The square root of 1204090000 is 34700.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 94400656 + 1109689344 = 9716^2 + 33312^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3469827 + ... + 3470173.

Almost surely, 2^1204090000 is an apocalyptic number.

1204090000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1204090000 is the 34700-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204090000

1204090000 is an abundant number, since it is smaller than the sum of its proper divisors (1719557727).

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

1204090000 is an frugal number, since it uses more digits than its factorization.

1204090000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The cubic root of 1204090000 is about 1063.8644983568.

Multiplying 1204090000 by its sum of digits (16), we get a square (19265440000 = 138800²).

1204090000 divided by its sum of digits (16) gives a square (75255625 = 8675²).

Adding to 1204090000 its reverse (904021), we get a palindrome (1204994021).

The spelling of 1204090000 in words is "one billion, two hundred four million, ninety thousand".