340402432 has 36 divisors (see below), whose sum is σ = 680670396. Its totient is φ = 169902080.

The previous prime is 340402429. The next prime is 340402477. The reversal of 340402432 is 234204043.

It can be written as a sum of positive squares in 2 ways, for example, as 198697216 + 141705216 = 14096^2 + 11904^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249432 + ... + 250792.

It is an arithmetic number, because the mean of its divisors is an integer number (18907511).

Almost surely, 2^340402432 is an apocalyptic number.

340402432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

340402432 is a deficient number, since it is larger than the sum of its proper divisors (340267964).

340402432 is an equidigital number, since it uses as much as digits as its factorization.

340402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 340402432 is about 18449.9981571815. The cubic root of 340402432 is about 698.2284673955.

Adding to 340402432 its reverse (234204043), we get a palindrome (574606475).

The spelling of 340402432 in words is "three hundred forty million, four hundred two thousand, four hundred thirty-two".