404024149 has 2 divisors, whose sum is σ = 404024150. Its totient is φ = 404024148.

The previous prime is 404024129. The next prime is 404024161. The reversal of 404024149 is 941420404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326055249 + 77968900 = 18057^2 + 8830^2 .

It is a cyclic number.

It is not a de Polignac number, because 404024149 - 2⁷ = 404024021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404024129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202012074 + 202012075.

It is an arithmetic number, because the mean of its divisors is an integer number (202012075).

Almost surely, 2^404024149 is an apocalyptic number.

It is an amenable number.

404024149 is a deficient number, since it is larger than the sum of its proper divisors (1).

404024149 is an equidigital number, since it uses as much as digits as its factorization.

404024149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 404024149 is about 20100.3519620926. The cubic root of 404024149 is about 739.2689084564.

It can be divided in two parts, 40402 and 4149, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 404024149 in words is "four hundred four million, twenty-four thousand, one hundred forty-nine".