1006454144 has 16 divisors (see below), whose sum is σ = 2005045620. Its totient is φ = 503227008.

The previous prime is 1006454143. The next prime is 1006454147. The reversal of 1006454144 is 4414546001.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×1006454144³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006454143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931334 + ... + 3931589.

Almost surely, 2^1006454144 is an apocalyptic number.

It is an amenable number.

1006454144 is a deficient number, since it is larger than the sum of its proper divisors (998591476).

1006454144 is an frugal number, since it uses more digits than its factorization.

1006454144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7862937 (or 7862925 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1006454144 is about 31724.6614481542. The cubic root of 1006454144 is about 1002.1467694165.

The spelling of 1006454144 in words is "one billion, six million, four hundred fifty-four thousand, one hundred forty-four".