16350404 has 24 divisors (see below), whose sum is σ = 32850048. Its totient is φ = 6975360.

The previous prime is 16350359. The next prime is 16350421. The reversal of 16350404 is 40405361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16350404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5537 + ... + 7959.

It is an arithmetic number, because the mean of its divisors is an integer number (1368752).

Almost surely, 2^16350404 is an apocalyptic number.

16350404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16350404 is an abundant number, since it is smaller than the sum of its proper divisors (16499644).

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

16350404 is a wasteful number, since it uses less digits than its factorization.

16350404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2673 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 16350404 is about 4043.5632800786. The cubic root of 16350404 is about 253.8104482001.

Adding to 16350404 its reverse (40405361), we get a palindrome (56755765).

The spelling of 16350404 in words is "sixteen million, three hundred fifty thousand, four hundred four".