1200398472 has 192 divisors, whose sum is σ = 4084080000. Its totient is φ = 316503936.

The previous prime is 1200398453. The next prime is 1200398477. The reversal of 1200398472 is 2748930021.

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 (1200398477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319179 + ... + 322917.

It is an arithmetic number, because the mean of its divisors is an integer number (21271250).

Almost surely, 2^1200398472 is an apocalyptic number.

1200398472 is a gapful number since it is divisible by the number (12) 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 1200398472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2042040000).

1200398472 is an abundant number, since it is smaller than the sum of its proper divisors (2883681528).

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

1200398472 is a wasteful number, since it uses less digits than its factorization.

1200398472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1200398472 is about 34646.7671219120. The cubic root of 1200398472 is about 1062.7761783006.

The spelling of 1200398472 in words is "one billion, two hundred million, three hundred ninety-eight thousand, four hundred seventy-two".