340022220 has 48 divisors (see below), whose sum is σ = 953524320. Its totient is φ = 90533376.

The previous prime is 340022203. The next prime is 340022227. The reversal of 340022220 is 22220043.

It is a super-2 number, since 2×340022220² = 231230220187456800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 340022220.

It is not an unprimeable number, because it can be changed into a prime (340022227) 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, 38544 + ... + 46536.

It is an arithmetic number, because the mean of its divisors is an integer number (19865090).

Almost surely, 2^340022220 is an apocalyptic number.

340022220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340022220 is an abundant number, since it is smaller than the sum of its proper divisors (613502100).

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

340022220 is a wasteful number, since it uses less digits than its factorization.

340022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8714 (or 8712 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 340022220 is about 18439.6914290885. The cubic root of 340022220 is about 697.9684087913.

Adding to 340022220 its reverse (22220043), we get a palindrome (362242263).

The spelling of 340022220 in words is "three hundred forty million, twenty-two thousand, two hundred twenty".