345297654 has 192 divisors, whose sum is σ = 904071168. Its totient is φ = 97977600.

The previous prime is 345297649. The next prime is 345297671. The reversal of 345297654 is 456792543.

345297654 is a `hidden beast` number, since 3 + 4 + 529 + 76 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8030157 + ... + 8030199.

It is an arithmetic number, because the mean of its divisors is an integer number (4708704).

Almost surely, 2^345297654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345297654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452035584).

345297654 is an abundant number, since it is smaller than the sum of its proper divisors (558773514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345297654 is a wasteful number, since it uses less digits than its factorization.

345297654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 133 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 345297654 is about 18582.1864698426. The cubic root of 345297654 is about 701.5595527732.

The spelling of 345297654 in words is "three hundred forty-five million, two hundred ninety-seven thousand, six hundred fifty-four".