1006412644 has 12 divisors (see below), whose sum is σ = 1818035968. Its totient is φ = 486973800.

The previous prime is 1006412621. The next prime is 1006412647. The reversal of 1006412644 is 4462146001.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1006412647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057992 + ... + 4058239.

Almost surely, 2^1006412644 is an apocalyptic number.

It is an amenable number.

1006412644 is a deficient number, since it is larger than the sum of its proper divisors (811623324).

1006412644 is a wasteful number, since it uses less digits than its factorization.

1006412644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116266 (or 8116264 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1006412644 is about 31724.0073761182. The cubic root of 1006412644 is about 1002.1329950971.

Adding to 1006412644 its reverse (4462146001), we get a palindrome (5468558645).

It can be divided in two parts, 100641 and 2644, that added together give a triangular number (103285 = T₄₅₄).

The spelling of 1006412644 in words is "one billion, six million, four hundred twelve thousand, six hundred forty-four".