144672669 has 64 divisors (see below), whose sum is σ = 244166400. Its totient is φ = 84105216.

The previous prime is 144672623. The next prime is 144672679. The reversal of 144672669 is 966276441.

It is not a de Polignac number, because 144672669 - 2⁸ = 144672413 is a prime.

It is a super-2 number, since 2×144672669² = 41860362311167122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144672679) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 462057 + ... + 462369.

It is an arithmetic number, because the mean of its divisors is an integer number (3815100).

Almost surely, 2^144672669 is an apocalyptic number.

144672669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

144672669 is a deficient number, since it is larger than the sum of its proper divisors (99493731).

144672669 is a wasteful number, since it uses less digits than its factorization.

144672669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 405 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 144672669 is about 12027.9952194869. The cubic root of 144672669 is about 524.9631647626.

The spelling of 144672669 in words is "one hundred forty-four million, six hundred seventy-two thousand, six hundred sixty-nine".