402434543 has 8 divisors (see below), whose sum is σ = 460647840. Its totient is φ = 344401920.

The previous prime is 402434477. The next prime is 402434551. The reversal of 402434543 is 345434204.

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 402434543 - 2¹² = 402430447 is a prime.

It is a super-2 number, since 2×402434543² = 323907122799237698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402434563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40358 + ... + 49331.

It is an arithmetic number, because the mean of its divisors is an integer number (57580980).

Almost surely, 2^402434543 is an apocalyptic number.

402434543 is a deficient number, since it is larger than the sum of its proper divisors (58213297).

402434543 is an equidigital number, since it uses as much as digits as its factorization.

402434543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90337.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 402434543 is about 20060.7712463903. The cubic root of 402434543 is about 738.2980994498.

Adding to 402434543 its reverse (345434204), we get a palindrome (747868747).

The spelling of 402434543 in words is "four hundred two million, four hundred thirty-four thousand, five hundred forty-three".