340140437 has 16 divisors (see below), whose sum is σ = 443261952. Its totient is φ = 253290240.

The previous prime is 340140431. The next prime is 340140461. The reversal of 340140437 is 734041043.

It is not a de Polignac number, because 340140437 - 2⁴ = 340140421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340140431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108389 + ... + 111482.

It is an arithmetic number, because the mean of its divisors is an integer number (27703872).

Almost surely, 2^340140437 is an apocalyptic number.

It is an amenable number.

340140437 is a deficient number, since it is larger than the sum of its proper divisors (103121515).

340140437 is a wasteful number, since it uses less digits than its factorization.

340140437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219908.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 340140437 is about 18442.8966542677. The cubic root of 340140437 is about 698.0492879868.

The spelling of 340140437 in words is "three hundred forty million, one hundred forty thousand, four hundred thirty-seven".