345506456 has 32 divisors (see below), whose sum is σ = 660409200. Its totient is φ = 169430400.

The previous prime is 345506443. The next prime is 345506459. The reversal of 345506456 is 654605543.

It is a happy number.

It is a super-2 number, since 2×345506456² = 238749422275359872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345506459) 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, 86111 + ... + 90033.

Almost surely, 2^345506456 is an apocalyptic number.

It is an amenable number.

345506456 is a deficient number, since it is larger than the sum of its proper divisors (314902744).

345506456 is a wasteful number, since it uses less digits than its factorization.

345506456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139 (or 4135 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 345506456 is about 18587.8039585100. The cubic root of 345506456 is about 701.7009356439.

The spelling of 345506456 in words is "three hundred forty-five million, five hundred six thousand, four hundred fifty-six".