340434990 has 48 divisors (see below), whose sum is σ = 1011580128. Its totient is φ = 77813568.

The previous prime is 340434977. The next prime is 340435003. The reversal of 340434990 is 99434043.

It is an interprime number because it is at equal distance from previous prime (340434977) and next prime (340435003).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269557 + ... + 270816.

It is an arithmetic number, because the mean of its divisors is an integer number (21074586).

Almost surely, 2^340434990 is an apocalyptic number.

340434990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340434990 is an abundant number, since it is smaller than the sum of its proper divisors (671145138).

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

340434990 is a wasteful number, since it uses less digits than its factorization.

340434990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540393 (or 540390 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 340434990 is about 18450.8804667962. The cubic root of 340434990 is about 698.2507275162.

The spelling of 340434990 in words is "three hundred forty million, four hundred thirty-four thousand, nine hundred ninety".