340672649 has 8 divisors (see below), whose sum is σ = 349264608. Its totient is φ = 332094240.

The previous prime is 340672627. The next prime is 340672663. The reversal of 340672649 is 946276043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340672649 - 2²⁴ = 323895433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340672049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64154 + ... + 69260.

It is an arithmetic number, because the mean of its divisors is an integer number (43658076).

Almost surely, 2^340672649 is an apocalyptic number.

It is an amenable number.

340672649 is a deficient number, since it is larger than the sum of its proper divisors (8591959).

340672649 is a wasteful number, since it uses less digits than its factorization.

340672649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 340672649 is about 18457.3196591488. The cubic root of 340672649 is about 698.4131735766.

The spelling of 340672649 in words is "three hundred forty million, six hundred seventy-two thousand, six hundred forty-nine".