340746457 has 8 divisors (see below), whose sum is σ = 346147200. Its totient is φ = 335376720.

The previous prime is 340746443. The next prime is 340746473. The reversal of 340746457 is 754647043.

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 340746457 - 2¹¹ = 340744409 is a prime.

It is a super-2 number, since 2×340746457² = 232216295916105698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340740457) 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, 14919 + ... + 30067.

It is an arithmetic number, because the mean of its divisors is an integer number (43268400).

Almost surely, 2^340746457 is an apocalyptic number.

It is an amenable number.

340746457 is a deficient number, since it is larger than the sum of its proper divisors (5400743).

340746457 is a wasteful number, since it uses less digits than its factorization.

340746457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503.

The product of its (nonzero) digits is 282240, while the sum is 40.

The square root of 340746457 is about 18459.3189744367. The cubic root of 340746457 is about 698.4636078742.

The spelling of 340746457 in words is "three hundred forty million, seven hundred forty-six thousand, four hundred fifty-seven".