2040400342 has 8 divisors (see below), whose sum is σ = 3135249432. Its totient is φ = 995317200.

The previous prime is 2040400337. The next prime is 2040400361. The reversal of 2040400342 is 2430040402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 12441384 + ... + 12441547.

It is an arithmetic number, because the mean of its divisors is an integer number (391906179).

Almost surely, 2^2040400342 is an apocalyptic number.

2040400342 is a deficient number, since it is larger than the sum of its proper divisors (1094849090).

2040400342 is a wasteful number, since it uses less digits than its factorization.

2040400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24882974.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2040400342 is about 45170.7908055637. The cubic root of 2040400342 is about 1268.3480996706.

Adding to 2040400342 its reverse (2430040402), we get a palindrome (4470440744).

The spelling of 2040400342 in words is "two billion, forty million, four hundred thousand, three hundred forty-two".