340553353434 has 96 divisors (see below), whose sum is σ = 829242700416. Its totient is φ = 91316797440.

The previous prime is 340553353423. The next prime is 340553353487. The reversal of 340553353434 is 434353355043.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4244974 + ... + 4324454.

It is an arithmetic number, because the mean of its divisors is an integer number (8637944796).

Almost surely, 2^340553353434 is an apocalyptic number.

340553353434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 340553353434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414621350208).

340553353434 is an abundant number, since it is smaller than the sum of its proper divisors (488689346982).

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

340553353434 is a wasteful number, since it uses less digits than its factorization.

340553353434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79880 (or 79863 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 42.

The spelling of 340553353434 in words is "three hundred forty billion, five hundred fifty-three million, three hundred fifty-three thousand, four hundred thirty-four".