340743390 has 64 divisors (see below), whose sum is σ = 919005696. Its totient is φ = 80226432.

The previous prime is 340743379. The next prime is 340743409. The reversal of 340743390 is 93347043.

340743390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×340743390² = 232212115657384200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10024 + ... + 27963.

It is an arithmetic number, because the mean of its divisors is an integer number (14359464).

Almost surely, 2^340743390 is an apocalyptic number.

340743390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340743390 is an abundant number, since it is smaller than the sum of its proper divisors (578262306).

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

340743390 is a wasteful number, since it uses less digits than its factorization.

340743390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38033.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 340743390 is about 18459.2358996791. The cubic root of 340743390 is about 698.4615122845.

The spelling of 340743390 in words is "three hundred forty million, seven hundred forty-three thousand, three hundred ninety".