340490963 has 4 divisors (see below), whose sum is σ = 358411560. Its totient is φ = 322570368.

The previous prime is 340490951. The next prime is 340490971. The reversal of 340490963 is 369094043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369094043 = 613 ⋅602111.

It is a cyclic number.

It is not a de Polignac number, because 340490963 - 2⁸ = 340490707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340490903) 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, 8960270 + ... + 8960307.

It is an arithmetic number, because the mean of its divisors is an integer number (89602890).

Almost surely, 2^340490963 is an apocalyptic number.

340490963 is a deficient number, since it is larger than the sum of its proper divisors (17920597).

340490963 is a wasteful number, since it uses less digits than its factorization.

340490963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17920596.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 340490963 is about 18452.3972155381. The cubic root of 340490963 is about 698.2889933108.

The spelling of 340490963 in words is "three hundred forty million, four hundred ninety thousand, nine hundred sixty-three".