402455664230441 has 4 divisors (see below), whose sum is σ = 402455819026884. Its totient is φ = 402455509434000.

The previous prime is 402455664230401. The next prime is 402455664230449. The reversal of 402455664230441 is 144032466554204.

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 303803889060841 + 98651775169600 = 17429971^2 + 9932360^2 .

It is a cyclic number.

It is not a de Polignac number, because 402455664230441 - 2³⁸ = 402180786323497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402455664230441.

It is not an unprimeable number, because it can be changed into a prime (402455664230449) 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, 73430570 + ... + 78720771.

It is an arithmetic number, because the mean of its divisors is an integer number (100613954756721).

Almost surely, 2^{402455664230441} is an apocalyptic number.

It is an amenable number.

402455664230441 is a deficient number, since it is larger than the sum of its proper divisors (154796443).

402455664230441 is a wasteful number, since it uses less digits than its factorization.

402455664230441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154796442.

The product of its (nonzero) digits is 11059200, while the sum is 50.

The spelling of 402455664230441 in words is "four hundred two trillion, four hundred fifty-five billion, six hundred sixty-four million, two hundred thirty thousand, four hundred forty-one".