402408011 has 4 divisors (see below), whose sum is σ = 423587400. Its totient is φ = 381228624.

The previous prime is 402408001. The next prime is 402408059. The reversal of 402408011 is 110804204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402408011 is a prime.

It is a super-2 number, since 2×402408011² = 323864414633952242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402408001) 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, 10589666 + ... + 10589703.

It is an arithmetic number, because the mean of its divisors is an integer number (105896850).

Almost surely, 2^402408011 is an apocalyptic number.

402408011 is a deficient number, since it is larger than the sum of its proper divisors (21179389).

402408011 is a wasteful number, since it uses less digits than its factorization.

402408011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179388.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 402408011 is about 20060.1099448632. The cubic root of 402408011 is about 738.2818740735.

The spelling of 402408011 in words is "four hundred two million, four hundred eight thousand, eleven".