340804920 has 32 divisors (see below), whose sum is σ = 1022415120. Its totient is φ = 90881280.

The previous prime is 340804903. The next prime is 340804927. The reversal of 340804920 is 29408043.

It is a happy number.

340804920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×340804920² = 232295986992412800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340804927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1419901 + ... + 1420140.

Almost surely, 2^340804920 is an apocalyptic number.

340804920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340804920 is an abundant number, since it is smaller than the sum of its proper divisors (681610200).

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

340804920 is a wasteful number, since it uses less digits than its factorization.

340804920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840055 (or 2840051 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 340804920 is about 18460.9024698144. The cubic root of 340804920 is about 698.5035514959.

The spelling of 340804920 in words is "three hundred forty million, eight hundred four thousand, nine hundred twenty".