354040520 has 64 divisors (see below), whose sum is σ = 808315200. Its totient is φ = 139552000.

The previous prime is 354040513. The next prime is 354040537. The reversal of 354040520 is 25040453.

It is an unprimeable number.

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, 1410395 + ... + 1410645.

It is an arithmetic number, because the mean of its divisors is an integer number (12629925).

Almost surely, 2^354040520 is an apocalyptic number.

It is an amenable number.

354040520 is an abundant number, since it is smaller than the sum of its proper divisors (454274680).

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

354040520 is a wasteful number, since it uses less digits than its factorization.

354040520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 354040520 is about 18815.9644982658. The cubic root of 354040520 is about 707.4313850891.

Adding to 354040520 its reverse (25040453), we get a palindrome (379080973).

The spelling of 354040520 in words is "three hundred fifty-four million, forty thousand, five hundred twenty".