202401040342 has 4 divisors (see below), whose sum is σ = 303601560516. Its totient is φ = 101200520170.

The previous prime is 202401040253. The next prime is 202401040421. The reversal of 202401040342 is 243040104202.

It is a happy number.

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

It is a super-2 number, since 2×202401040342² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600260084 + ... + 50600260087.

It is an arithmetic number, because the mean of its divisors is an integer number (75900390129).

Almost surely, 2^202401040342 is an apocalyptic number.

202401040342 is a deficient number, since it is larger than the sum of its proper divisors (101200520174).

202401040342 is a wasteful number, since it uses less digits than its factorization.

202401040342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101200520173.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 202401040342 its reverse (243040104202), we get a palindrome (445441144544).

The spelling of 202401040342 in words is "two hundred two billion, four hundred one million, forty thousand, three hundred forty-two".