340402000 has 80 divisors (see below), whose sum is σ = 851619600. Its totient is φ = 131443200.

The previous prime is 340401977. The next prime is 340402019. The reversal of 340402000 is 204043.

It can be written as a sum of positive squares in 8 ways, for example, as 184851216 + 155550784 = 13596^2 + 12472^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55066 + ... + 60934.

It is an arithmetic number, because the mean of its divisors is an integer number (10645245).

Almost surely, 2^340402000 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 340402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425809800).

340402000 is an abundant number, since it is smaller than the sum of its proper divisors (511217600).

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

340402000 is a wasteful number, since it uses less digits than its factorization.

340402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921 (or 5905 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 340402000 is about 18449.9864498595. The cubic root of 340402000 is about 698.2281720247.

Adding to 340402000 its reverse (204043), we get a palindrome (340606043).

The spelling of 340402000 in words is "three hundred forty million, four hundred two thousand".