1201429800 has 192 divisors, whose sum is σ = 4272345600. Its totient is φ = 310003200.

The previous prime is 1201429781. The next prime is 1201429819. The reversal of 1201429800 is 89241021.

It is an interprime number because it is at equal distance from previous prime (1201429781) and next prime (1201429819).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163812 + ... + 170988.

It is an arithmetic number, because the mean of its divisors is an integer number (22251800).

Almost surely, 2^1201429800 is an apocalyptic number.

1201429800 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 1201429800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2136172800).

1201429800 is an abundant number, since it is smaller than the sum of its proper divisors (3070915800).

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

1201429800 is a wasteful number, since it uses less digits than its factorization.

1201429800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7233 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1201429800 is about 34661.6473930481. The cubic root of 1201429800 is about 1063.0804542300.

It can be divided in two parts, 12014 and 29800, that added together give a palindrome (41814).

The spelling of 1201429800 in words is "one billion, two hundred one million, four hundred twenty-nine thousand, eight hundred".