455016690 has 80 divisors (see below), whose sum is σ = 1243681560. Its totient is φ = 119335680.

The previous prime is 455016677. The next prime is 455016691. The reversal of 455016690 is 96610554.

455016690 is a `hidden beast` number, since 4 + 5 + 501 + 66 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 150479289 + 304537401 = 12267^2 + 17451^2 .

It is a super-2 number, since 2×455016690² = 414080376357112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (455016691) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44806 + ... + 54014.

Almost surely, 2^455016690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455016690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621840780).

455016690 is an abundant number, since it is smaller than the sum of its proper divisors (788664870).

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

455016690 is a wasteful number, since it uses less digits than its factorization.

455016690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9289 (or 9280 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 455016690 is about 21331.1202237482. The cubic root of 455016690 is about 769.1465723050.

The spelling of 455016690 in words is "four hundred fifty-five million, sixteen thousand, six hundred ninety".