402167261 has 8 divisors (see below), whose sum is σ = 412595040. Its totient is φ = 391788432.

The previous prime is 402167257. The next prime is 402167267. The reversal of 402167261 is 162761204.

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

It is a cyclic number.

It is not a de Polignac number, because 402167261 - 2² = 402167257 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 (402167267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 28748.

It is an arithmetic number, because the mean of its divisors is an integer number (51574380).

Almost surely, 2^402167261 is an apocalyptic number.

It is an amenable number.

402167261 is a deficient number, since it is larger than the sum of its proper divisors (10427779).

402167261 is a wasteful number, since it uses less digits than its factorization.

402167261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 402167261 is about 20054.1083322096. The cubic root of 402167261 is about 738.1346132387.

The spelling of 402167261 in words is "four hundred two million, one hundred sixty-seven thousand, two hundred sixty-one".