402042011 has 24 divisors (see below), whose sum is σ = 475793136. Its totient is φ = 338688000.

The previous prime is 402041977. The next prime is 402042019. The reversal of 402042011 is 110240204.

It is not a de Polignac number, because 402042011 - 2¹⁴ = 402025627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402042019) 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 23 ways as a sum of consecutive naturals, for example, 1192835 + ... + 1193171.

It is an arithmetic number, because the mean of its divisors is an integer number (19824714).

Almost surely, 2^402042011 is an apocalyptic number.

402042011 is a deficient number, since it is larger than the sum of its proper divisors (73751125).

402042011 is a wasteful number, since it uses less digits than its factorization.

402042011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 402042011 is about 20050.9852875114. The cubic root of 402042011 is about 738.0579776623.

Adding to 402042011 its reverse (110240204), we get a palindrome (512282215).

The spelling of 402042011 in words is "four hundred two million, forty-two thousand, eleven".