345800949 has 16 divisors (see below), whose sum is σ = 507101952. Its totient is φ = 208271808.

The previous prime is 345800879. The next prime is 345800957. The reversal of 345800949 is 949008543.

It is not a de Polignac number, because 345800949 - 2²¹ = 343703797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345800949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345800999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92494 + ... + 96159.

It is an arithmetic number, because the mean of its divisors is an integer number (31693872).

Almost surely, 2^345800949 is an apocalyptic number.

345800949 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

345800949 is a deficient number, since it is larger than the sum of its proper divisors (161301003).

345800949 is a wasteful number, since it uses less digits than its factorization.

345800949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188716.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 345800949 is about 18595.7239439609. The cubic root of 345800949 is about 701.9002443458.

The spelling of 345800949 in words is "three hundred forty-five million, eight hundred thousand, nine hundred forty-nine".