144645400 has 24 divisors (see below), whose sum is σ = 336301020. Its totient is φ = 57858080.

The previous prime is 144645383. The next prime is 144645407. The reversal of 144645400 is 4546441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144645407) 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 5 ways as a sum of consecutive naturals, for example, 361414 + ... + 361813.

Almost surely, 2^144645400 is an apocalyptic number.

144645400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144645400 is an abundant number, since it is smaller than the sum of its proper divisors (191655620).

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

144645400 is a wasteful number, since it uses less digits than its factorization.

144645400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723243 (or 723234 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 144645400 is about 12026.8616022635. The cubic root of 144645400 is about 524.9301796794.

The spelling of 144645400 in words is "one hundred forty-four million, six hundred forty-five thousand, four hundred".