402242811 has 16 divisors (see below), whose sum is σ = 548674560. Its totient is φ = 262028000.

The previous prime is 402242803. The next prime is 402242821. The reversal of 402242811 is 118242204.

It is a cyclic number.

It is not a de Polignac number, because 402242811 - 2³ = 402242803 is a prime.

It is a super-3 number, since 3×402242811³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (402242821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34870 + ... + 44948.

It is an arithmetic number, because the mean of its divisors is an integer number (34292160).

Almost surely, 2^402242811 is an apocalyptic number.

402242811 is a deficient number, since it is larger than the sum of its proper divisors (146431749).

402242811 is a wasteful number, since it uses less digits than its factorization.

402242811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10386.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 402242811 is about 20055.9918976848. The cubic root of 402242811 is about 738.1808316357.

The spelling of 402242811 in words is "four hundred two million, two hundred forty-two thousand, eight hundred eleven".