402020411 has 12 divisors (see below), whose sum is σ = 458239320. Its totient is φ = 351561600.

The previous prime is 402020407. The next prime is 402020419. The reversal of 402020411 is 114020204.

It is not a de Polignac number, because 402020411 - 2² = 402020407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402020419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59390 + ... + 65811.

It is an arithmetic number, because the mean of its divisors is an integer number (38186610).

Almost surely, 2^402020411 is an apocalyptic number.

402020411 is a deficient number, since it is larger than the sum of its proper divisors (56218909).

402020411 is a wasteful number, since it uses less digits than its factorization.

402020411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125246 (or 125233 counting only the distinct ones).

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

The square root of 402020411 is about 20050.4466533791. The cubic root of 402020411 is about 738.0447598580.

Adding to 402020411 its reverse (114020204), we get a palindrome (516040615).

It can be divided in two parts, 4020204 and 11, that multiplied together give a palindrome (44222244).

The spelling of 402020411 in words is "four hundred two million, twenty thousand, four hundred eleven".