416622978 has 54 divisors (see below), whose sum is σ = 962305929. Its totient is φ = 130243392.

The previous prime is 416622971. The next prime is 416622979. The reversal of 416622978 is 879226614.

It is a happy number.

416622978 is a `hidden beast` number, since 4 + 16 + 622 + 9 + 7 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 381303729 + 35319249 = 19527^2 + 5943^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14433.

It is not an unprimeable number, because it can be changed into a prime (416622971) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1472025 + ... + 1472307.

Almost surely, 2^416622978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 416622978

416622978 is an abundant number, since it is smaller than the sum of its proper divisors (545682951).

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

416622978 is a wasteful number, since it uses less digits than its factorization.

416622978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 305 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 416622978 is about 20411.3443457309. The cubic root of 416622978 is about 746.8746853007.

The spelling of 416622978 in words is "four hundred sixteen million, six hundred twenty-two thousand, nine hundred seventy-eight".