402012411 has 4 divisors (see below), whose sum is σ = 536016552. Its totient is φ = 268008272.

The previous prime is 402012397. The next prime is 402012419. The reversal of 402012411 is 114210204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402012411 - 2¹¹ = 402010363 is a prime.

It is a super-2 number, since 2×402012411² = 323227957196065842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402012419) 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, 67002066 + ... + 67002071.

It is an arithmetic number, because the mean of its divisors is an integer number (134004138).

Almost surely, 2^402012411 is an apocalyptic number.

402012411 is a deficient number, since it is larger than the sum of its proper divisors (134004141).

402012411 is a wasteful number, since it uses less digits than its factorization.

402012411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134004140.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 402012411 is about 20050.2471555839. The cubic root of 402012411 is about 738.0398642548.

Adding to 402012411 its reverse (114210204), we get a palindrome (516222615).

The spelling of 402012411 in words is "four hundred two million, twelve thousand, four hundred eleven".