400525041 has 8 divisors (see below), whose sum is σ = 610323904. Its totient is φ = 228871440.

The previous prime is 400525039. The next prime is 400525051. The reversal of 400525041 is 140525004.

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

It is not a de Polignac number, because 400525041 - 2¹ = 400525039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19072621 = 400525041 / (4 + 0 + 0 + 5 + 2 + 5 + 0 + 4 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400524999 and 400525017.

It is not an unprimeable number, because it can be changed into a prime (400525051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9536290 + ... + 9536331.

It is an arithmetic number, because the mean of its divisors is an integer number (76290488).

Almost surely, 2^400525041 is an apocalyptic number.

It is an amenable number.

400525041 is a deficient number, since it is larger than the sum of its proper divisors (209798863).

400525041 is a wasteful number, since it uses less digits than its factorization.

400525041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19072631.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 400525041 is about 20013.1217205113. The cubic root of 400525041 is about 737.1285367098.

The spelling of 400525041 in words is "four hundred million, five hundred twenty-five thousand, forty-one".