402261061 has 4 divisors (see below), whose sum is σ = 403455052. Its totient is φ = 401067072.

The previous prime is 402261049. The next prime is 402261071. The reversal of 402261061 is 160162204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 126900225 + 275360836 = 11265^2 + 16594^2 .

It is a cyclic number.

It is not a de Polignac number, because 402261061 - 2⁵ = 402261029 is a prime.

It is a super-2 number, since 2×402261061² = 323627922393691442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402261031) 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, 596490 + ... + 597163.

It is an arithmetic number, because the mean of its divisors is an integer number (100863763).

Almost surely, 2^402261061 is an apocalyptic number.

It is an amenable number.

402261061 is a deficient number, since it is larger than the sum of its proper divisors (1193991).

402261061 is a wasteful number, since it uses less digits than its factorization.

402261061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193990.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 402261061 is about 20056.4468687751. The cubic root of 402261061 is about 738.1919953707.

The spelling of 402261061 in words is "four hundred two million, two hundred sixty-one thousand, sixty-one".