4012650 has 72 divisors (see below), whose sum is σ = 11117964. Its totient is φ = 1036800.

The previous prime is 4012639. The next prime is 4012669. The reversal of 4012650 is 562104.

It is a happy number.

4012650 is a `hidden beast` number, since 4 + 0 + 12 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2852721 + 1159929 = 1689^2 + 1077^2 .

It is a super-2 number, since 2×4012650² = 32202720045000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16530 + ... + 16770.

Almost surely, 2^4012650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5558982).

4012650 is an abundant number, since it is smaller than the sum of its proper divisors (7105314).

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

4012650 is a wasteful number, since it uses less digits than its factorization.

4012650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4012650 is about 2003.1600035943. The cubic root of 4012650 is about 158.9072676310.

Adding to 4012650 its reverse (562104), we get a palindrome (4574754).

The spelling of 4012650 in words is "four million, twelve thousand, six hundred fifty".