340140454 has 16 divisors (see below), whose sum is σ = 543250800. Its totient is φ = 159169024.

The previous prime is 340140431. The next prime is 340140461. The reversal of 340140454 is 454041043.

It is a super-2 number, since 2×340140454² = 231391056894652232, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 21859 + ... + 34030.

It is an arithmetic number, because the mean of its divisors is an integer number (33953175).

Almost surely, 2^340140454 is an apocalyptic number.

340140454 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

340140454 is a deficient number, since it is larger than the sum of its proper divisors (203110346).

340140454 is a wasteful number, since it uses less digits than its factorization.

340140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56087.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 340140454 is about 18442.8971151498. The cubic root of 340140454 is about 698.0492996161.

Adding to 340140454 its reverse (454041043), we get a palindrome (794181497).

The spelling of 340140454 in words is "three hundred forty million, one hundred forty thousand, four hundred fifty-four".