1236900672 has 224 divisors, whose sum is σ = 4181856000. Its totient is φ = 351184896.

The previous prime is 1236900659. The next prime is 1236900673. The reversal of 1236900672 is 2760096321.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236900673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3543954 + ... + 3544302.

It is an arithmetic number, because the mean of its divisors is an integer number (18669000).

Almost surely, 2^1236900672 is an apocalyptic number.

1236900672 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 1236900672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090928000).

1236900672 is an abundant number, since it is smaller than the sum of its proper divisors (2944955328).

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

1236900672 is a wasteful number, since it uses less digits than its factorization.

1236900672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1236900672 is about 35169.5986897775. The cubic root of 1236900672 is about 1073.4412373890.

Adding to 1236900672 its reverse (2760096321), we get a palindrome (3996996993).

The spelling of 1236900672 in words is "one billion, two hundred thirty-six million, nine hundred thousand, six hundred seventy-two".