340401847 has 4 divisors (see below), whose sum is σ = 345064960. Its totient is φ = 335738736.

The previous prime is 340401827. The next prime is 340401851. The reversal of 340401847 is 748104043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748104043 = 19 ⋅39373897.

It is a cyclic number.

It is not a de Polignac number, because 340401847 - 2¹¹ = 340399799 is a prime.

It is a super-2 number, since 2×340401847² = 231746834882022818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340401827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331447 + ... + 2331592.

It is an arithmetic number, because the mean of its divisors is an integer number (86266240).

Almost surely, 2^340401847 is an apocalyptic number.

340401847 is a deficient number, since it is larger than the sum of its proper divisors (4663113).

340401847 is an equidigital number, since it uses as much as digits as its factorization.

340401847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663112.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 340401847 is about 18449.9823035145. The cubic root of 340401847 is about 698.2280674141.

The spelling of 340401847 in words is "three hundred forty million, four hundred one thousand, eight hundred forty-seven".