404025029 has 8 divisors (see below), whose sum is σ = 415665432. Its totient is φ = 392469760.

The previous prime is 404025007. The next prime is 404025049. The reversal of 404025029 is 920520404.

It can be written as a sum of positive squares in 4 ways, for example, as 12974404 + 391050625 = 3602^2 + 19775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404025029 - 2¹² = 404020933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 404024989 and 404025007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404025049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11594 + ... + 30699.

It is an arithmetic number, because the mean of its divisors is an integer number (51958179).

Almost surely, 2^404025029 is an apocalyptic number.

It is an amenable number.

404025029 is a deficient number, since it is larger than the sum of its proper divisors (11640403).

404025029 is a wasteful number, since it uses less digits than its factorization.

404025029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42567.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 404025029 is about 20100.3738522446. The cubic root of 404025029 is about 739.2694451869.

The spelling of 404025029 in words is "four hundred four million, twenty-five thousand, twenty-nine".