340949644 has 18 divisors (see below), whose sum is σ = 694076460. Its totient is φ = 146121192.

The previous prime is 340949633. The next prime is 340949647. The reversal of 340949644 is 446949043.

It is a self number, because there is not a number n which added to its sum of digits gives 340949644.

It is not an unprimeable number, because it can be changed into a prime (340949647) 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 5 ways as a sum of consecutive naturals, for example, 869574 + ... + 869965.

Almost surely, 2^340949644 is an apocalyptic number.

It is an amenable number.

340949644 is an abundant number, since it is smaller than the sum of its proper divisors (353126816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340949644 is a wasteful number, since it uses less digits than its factorization.

340949644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739557 (or 1739548 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 340949644 is about 18464.8217971363. The cubic root of 340949644 is about 698.6024114947.

The spelling of 340949644 in words is "three hundred forty million, nine hundred forty-nine thousand, six hundred forty-four".