340004621491 has 4 divisors (see below), whose sum is σ = 343371003984. Its totient is φ = 336638239000.

The previous prime is 340004621483. The next prime is 340004621507. The reversal of 340004621491 is 194126400043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340004621491 - 2³ = 340004621483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340004621431) 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, 1683191095 + ... + 1683191296.

It is an arithmetic number, because the mean of its divisors is an integer number (85842750996).

Almost surely, 2^340004621491 is an apocalyptic number.

340004621491 is a deficient number, since it is larger than the sum of its proper divisors (3366382493).

340004621491 is a wasteful number, since it uses less digits than its factorization.

340004621491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366382492.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 340004621491 in words is "three hundred forty billion, four million, six hundred twenty-one thousand, four hundred ninety-one".