345402549 has 20 divisors (see below), whose sum is σ = 546325164. Its totient is φ = 216722304.

The previous prime is 345402529. The next prime is 345402559. The reversal of 345402549 is 945204543.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 269189649 + 76212900 = 16407^2 + 8730^2 .

It is not a de Polignac number, because 345402549 - 2¹¹ = 345400501 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345402529) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 124042 + ... + 126795.

Almost surely, 2^345402549 is an apocalyptic number.

It is an amenable number.

345402549 is a deficient number, since it is larger than the sum of its proper divisors (200922615).

345402549 is a wasteful number, since it uses less digits than its factorization.

345402549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250866 (or 250857 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 345402549 is about 18585.0087167050. The cubic root of 345402549 is about 701.6305858254.

The spelling of 345402549 in words is "three hundred forty-five million, four hundred two thousand, five hundred forty-nine".