216757038 has 16 divisors (see below), whose sum is σ = 459015120. Its totient is φ = 68002176.

The previous prime is 216757033. The next prime is 216757039. The reversal of 216757038 is 830757612.

216757038 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216757038² = 93967227045066888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216756987 and 216757005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216757033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062433 + ... + 1062636.

It is an arithmetic number, because the mean of its divisors is an integer number (28688445).

Almost surely, 2^216757038 is an apocalyptic number.

216757038 is an abundant number, since it is smaller than the sum of its proper divisors (242258082).

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

216757038 is a wasteful number, since it uses less digits than its factorization.

216757038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125091.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 216757038 is about 14722.6708854066. The cubic root of 216757038 is about 600.7001437911.

The spelling of 216757038 in words is "two hundred sixteen million, seven hundred fifty-seven thousand, thirty-eight".