16363945 has 32 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 11136000.

The previous prime is 16363937. The next prime is 16363957. The reversal of 16363945 is 54936361.

16363945 = T₂₆₉ + T₂₇₀ + ... + T₄₈₉.

It is not a de Polignac number, because 16363945 - 2³ = 16363937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65070 + ... + 65320.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^16363945 is an apocalyptic number.

It is an amenable number.

16363945 is a deficient number, since it is larger than the sum of its proper divisors (6497495).

16363945 is a wasteful number, since it uses less digits than its factorization.

16363945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 58320, while the sum is 37.

The square root of 16363945 is about 4045.2373230751. The cubic root of 16363945 is about 253.8804953774.

The spelling of 16363945 in words is "sixteen million, three hundred sixty-three thousand, nine hundred forty-five".