402000041 has 4 divisors (see below), whose sum is σ = 402271872. Its totient is φ = 401728212.

The previous prime is 402000031. The next prime is 402000047. The reversal of 402000041 is 140000204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402000041 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 = 401999986 and 402000031.

It is not an unprimeable number, because it can be changed into a prime (402000047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133685 + ... + 136658.

It is an arithmetic number, because the mean of its divisors is an integer number (100567968).

Almost surely, 2^402000041 is an apocalyptic number.

It is an amenable number.

402000041 is a deficient number, since it is larger than the sum of its proper divisors (271831).

402000041 is a wasteful number, since it uses less digits than its factorization.

402000041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271830.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 402000041 is about 20049.9386782105. The cubic root of 402000041 is about 738.0322943005.

Adding to 402000041 its reverse (140000204), we get a palindrome (542000245).

The spelling of 402000041 in words is "four hundred two million, forty-one", and thus it is an aban number.