340003980 has 120 divisors (see below), whose sum is σ = 1092833280. Its totient is φ = 88439040.

The previous prime is 340003973. The next prime is 340003987. The reversal of 340003980 is 89300043.

It is an interprime number because it is at equal distance from previous prime (340003973) and next prime (340003987).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340003987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63861 + ... + 68979.

It is an arithmetic number, because the mean of its divisors is an integer number (9106944).

Almost surely, 2^340003980 is an apocalyptic number.

340003980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340003980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546416640).

340003980 is an abundant number, since it is smaller than the sum of its proper divisors (752829300).

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

340003980 is a wasteful number, since it uses less digits than its factorization.

340003980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 340003980 is about 18439.1968371727. The cubic root of 340003980 is about 697.9559280663.

The spelling of 340003980 in words is "three hundred forty million, three thousand, nine hundred eighty".