340422140 has 24 divisors (see below), whose sum is σ = 717862992. Its totient is φ = 135601920.

The previous prime is 340422119. The next prime is 340422193. The reversal of 340422140 is 41224043.

340422140 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

340422140 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30494 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (29910958).

Almost surely, 2^340422140 is an apocalyptic number.

It is an amenable number.

340422140 is an abundant number, since it is smaller than the sum of its proper divisors (377440852).

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

340422140 is a wasteful number, since it uses less digits than its factorization.

340422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70877 (or 70875 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 340422140 is about 18450.5322416455. The cubic root of 340422140 is about 698.2419420554.

Adding to 340422140 its reverse (41224043), we get a palindrome (381646183).

The spelling of 340422140 in words is "three hundred forty million, four hundred twenty-two thousand, one hundred forty".