402452541 has 6 divisors (see below), whose sum is σ = 581320350. Its totient is φ = 268301688.

The previous prime is 402452537. The next prime is 402452581. The reversal of 402452541 is 145254204.

402452541 is a `hidden beast` number, since 402 + 4 + 5 + 254 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 384356025 + 18096516 = 19605^2 + 4254^2 .

It is not a de Polignac number, because 402452541 - 2² = 402452537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402452521) 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 5 ways as a sum of consecutive naturals, for example, 22358466 + ... + 22358483.

It is an arithmetic number, because the mean of its divisors is an integer number (96886725).

Almost surely, 2^402452541 is an apocalyptic number.

It is an amenable number.

402452541 is a deficient number, since it is larger than the sum of its proper divisors (178867809).

402452541 is a wasteful number, since it uses less digits than its factorization.

402452541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44716955 (or 44716952 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 402452541 is about 20061.2198283155. The cubic root of 402452541 is about 738.3091055387.

It can be divided in two parts, 4024 and 52541, that added together give a palindrome (56565).

The spelling of 402452541 in words is "four hundred two million, four hundred fifty-two thousand, five hundred forty-one".