402106061 has 8 divisors (see below), whose sum is σ = 466409280. Its totient is φ = 339517728.

The previous prime is 402106039. The next prime is 402106073. The reversal of 402106061 is 160601204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402106061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402106961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428216 + ... + 429153.

It is an arithmetic number, because the mean of its divisors is an integer number (58301160).

Almost surely, 2^402106061 is an apocalyptic number.

It is an amenable number.

402106061 is a deficient number, since it is larger than the sum of its proper divisors (64303219).

402106061 is an equidigital number, since it uses as much as digits as its factorization.

402106061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857443.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 402106061 is about 20052.5824022743. The cubic root of 402106061 is about 738.0971693404.

Adding to 402106061 its reverse (160601204), we get a palindrome (562707265).

The spelling of 402106061 in words is "four hundred two million, one hundred six thousand, sixty-one".