402311342 has 4 divisors (see below), whose sum is σ = 603467016. Its totient is φ = 201155670.

The previous prime is 402311321. The next prime is 402311359. The reversal of 402311342 is 243113204.

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

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, 100577834 + ... + 100577837.

It is an arithmetic number, because the mean of its divisors is an integer number (150866754).

Almost surely, 2^402311342 is an apocalyptic number.

402311342 is a deficient number, since it is larger than the sum of its proper divisors (201155674).

402311342 is a wasteful number, since it uses less digits than its factorization.

402311342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201155673.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402311342 is about 20057.7003168359. The cubic root of 402311342 is about 738.2227510904. Note that the first 3 decimals are identical.

Adding to 402311342 its reverse (243113204), we get a palindrome (645424546).

The spelling of 402311342 in words is "four hundred two million, three hundred eleven thousand, three hundred forty-two".