340405052 has 12 divisors (see below), whose sum is σ = 641532696. Its totient is φ = 157110000.

The previous prime is 340405031. The next prime is 340405057. The reversal of 340405052 is 250504043.

It is a super-3 number, since 3×340405052³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340405057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3273074 + ... + 3273177.

It is an arithmetic number, because the mean of its divisors is an integer number (53461058).

Almost surely, 2^340405052 is an apocalyptic number.

It is an amenable number.

340405052 is a deficient number, since it is larger than the sum of its proper divisors (301127644).

340405052 is a wasteful number, since it uses less digits than its factorization.

340405052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6546268 (or 6546266 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 340405052 is about 18450.0691597620. The cubic root of 340405052 is about 698.2302587594.

Adding to 340405052 its reverse (250504043), we get a palindrome (590909095).

The spelling of 340405052 in words is "three hundred forty million, four hundred five thousand, fifty-two".