402213043 has 4 divisors (see below), whose sum is σ = 406118128. Its totient is φ = 398307960.

The previous prime is 402213037. The next prime is 402213059. The reversal of 402213043 is 340312204.

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

It is a cyclic number.

It is not a de Polignac number, because 402213043 - 2⁵ = 402213011 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 402213043.

It is not an unprimeable number, because it can be changed into a prime (402217043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1952388 + ... + 1952593.

It is an arithmetic number, because the mean of its divisors is an integer number (101529532).

Almost surely, 2^402213043 is an apocalyptic number.

402213043 is a deficient number, since it is larger than the sum of its proper divisors (3905085).

402213043 is a wasteful number, since it uses less digits than its factorization.

402213043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905084.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402213043 is about 20055.2497615961. The cubic root of 402213043 is about 738.1626214829.

Adding to 402213043 its reverse (340312204), we get a palindrome (742525247).

It can be divided in two parts, 40221 and 3043, that added together give a square (43264 = 208²).

The spelling of 402213043 in words is "four hundred two million, two hundred thirteen thousand, forty-three".