340553982 has 16 divisors (see below), whose sum is σ = 682738560. Its totient is φ = 113246232.

The previous prime is 340553981. The next prime is 340554037. The reversal of 340553982 is 289355043.

It is a self number, because there is not a number n which added to its sum of digits gives 340553982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340553981) 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, 65218 + ... + 70245.

It is an arithmetic number, because the mean of its divisors is an integer number (42671160).

Almost surely, 2^340553982 is an apocalyptic number.

340553982 is an abundant number, since it is smaller than the sum of its proper divisors (342184578).

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

340553982 is a wasteful number, since it uses less digits than its factorization.

340553982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135887.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 340553982 is about 18454.1047466411. The cubic root of 340553982 is about 698.3320710664.

The spelling of 340553982 in words is "three hundred forty million, five hundred fifty-three thousand, nine hundred eighty-two".