1336021400 has 96 divisors (see below), whose sum is σ = 3563209440. Its totient is φ = 456360960.

The previous prime is 1336021373. The next prime is 1336021409. The reversal of 1336021400 is 41206331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1336021409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408572 + ... + 411828.

It is an arithmetic number, because the mean of its divisors is an integer number (37116765).

Almost surely, 2^1336021400 is an apocalyptic number.

1336021400 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 1336021400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781604720).

1336021400 is an abundant number, since it is smaller than the sum of its proper divisors (2227188040).

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

1336021400 is a wasteful number, since it uses less digits than its factorization.

1336021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1336021400 is about 36551.6265027974. The cubic root of 1336021400 is about 1101.3815698448.

Adding to 1336021400 its reverse (41206331), we get a palindrome (1377227731).

The spelling of 1336021400 in words is "one billion, three hundred thirty-six million, twenty-one thousand, four hundred".