144506404 has 24 divisors (see below), whose sum is σ = 293330240. Its totient is φ = 61006176.

The previous prime is 144506353. The next prime is 144506431. The reversal of 144506404 is 404605441.

144506404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×144506404² = 41764201594022432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36639 + ... + 40390.

Almost surely, 2^144506404 is an apocalyptic number.

144506404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144506404 is an abundant number, since it is smaller than the sum of its proper divisors (148823836).

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

144506404 is a wasteful number, since it uses less digits than its factorization.

144506404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77107 (or 77105 counting only the distinct ones).

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

The square root of 144506404 is about 12021.0816485040. The cubic root of 144506404 is about 524.7619831130.

The spelling of 144506404 in words is "one hundred forty-four million, five hundred six thousand, four hundred four".