402040361132441 has 4 divisors (see below), whose sum is σ = 405598240434612. Its totient is φ = 398482481830272.

The previous prime is 402040361132353. The next prime is 402040361132461. The reversal of 402040361132441 is 144231163040204.

It is a happy number.

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 134784205315600 + 267256155816841 = 11609660^2 + 16347971^2 .

It is a cyclic number.

It is not a de Polignac number, because 402040361132441 - 2¹⁰ = 402040361131417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402040361132461) 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, 1778939650916 + ... + 1778939651141.

It is an arithmetic number, because the mean of its divisors is an integer number (101399560108653).

Almost surely, 2^{402040361132441} is an apocalyptic number.

It is an amenable number.

402040361132441 is a deficient number, since it is larger than the sum of its proper divisors (3557879302171).

402040361132441 is a wasteful number, since it uses less digits than its factorization.

402040361132441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557879302170.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 402040361132441 in words is "four hundred two trillion, forty billion, three hundred sixty-one million, one hundred thirty-two thousand, four hundred forty-one".