340279920 has 160 divisors (see below), whose sum is σ = 1178496000. Its totient is φ = 90245376.

The previous prime is 340279913. The next prime is 340279921. The reversal of 340279920 is 29972043.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340279921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567781 + ... + 568379.

It is an arithmetic number, because the mean of its divisors is an integer number (7365600).

Almost surely, 2^340279920 is an apocalyptic number.

340279920 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 340279920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589248000).

340279920 is an abundant number, since it is smaller than the sum of its proper divisors (838216080).

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

340279920 is a wasteful number, since it uses less digits than its factorization.

340279920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 340279920 is about 18446.6777496654. The cubic root of 340279920 is about 698.1446924062.

The spelling of 340279920 in words is "three hundred forty million, two hundred seventy-nine thousand, nine hundred twenty".