11445400 has 48 divisors (see below), whose sum is σ = 26951400. Its totient is φ = 4519680.

The previous prime is 11445397. The next prime is 11445407. The reversal of 11445400 is 454411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11445407) 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 11 ways as a sum of consecutive naturals, for example, 17479 + ... + 18121.

Almost surely, 2^11445400 is an apocalyptic number.

11445400 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 11445400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13475700).

11445400 is an abundant number, since it is smaller than the sum of its proper divisors (15506000).

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

11445400 is a wasteful number, since it uses less digits than its factorization.

11445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 11445400 is about 3383.1050826127. The cubic root of 11445400 is about 225.3600818668.

Adding to 11445400 its product of nonzero digits (320), we get a triangular number (11445720 = T₄₇₈₄).

Adding to 11445400 its reverse (454411), we get a palindrome (11899811).

The spelling of 11445400 in words is "eleven million, four hundred forty-five thousand, four hundred".