340588640 has 96 divisors (see below), whose sum is σ = 942145344. Its totient is φ = 113909760.

The previous prime is 340588627. The next prime is 340588643. The reversal of 340588640 is 46885043.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 340588594 and 340588603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340588643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42212 + ... + 49628.

It is an arithmetic number, because the mean of its divisors is an integer number (9814014).

Almost surely, 2^340588640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340588640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471072672).

340588640 is an abundant number, since it is smaller than the sum of its proper divisors (601556704).

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

340588640 is a wasteful number, since it uses less digits than its factorization.

340588640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480 (or 7472 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 340588640 is about 18455.0437550281. The cubic root of 340588640 is about 698.3557598923.

The spelling of 340588640 in words is "three hundred forty million, five hundred eighty-eight thousand, six hundred forty".