1002406664 has 32 divisors (see below), whose sum is σ = 2206073280. Its totient is φ = 417991104.

The previous prime is 1002406651. The next prime is 1002406673. The reversal of 1002406664 is 4666042001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239822 + ... + 243965.

It is an arithmetic number, because the mean of its divisors is an integer number (68939790).

Almost surely, 2^1002406664 is an apocalyptic number.

1002406664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1002406664 is an abundant number, since it is smaller than the sum of its proper divisors (1203666616).

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

1002406664 is a wasteful number, since it uses less digits than its factorization.

1002406664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483837 (or 483833 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1002406664 is about 31660.8064331912. The cubic root of 1002406664 is about 1000.8015786333.

Adding to 1002406664 its reverse (4666042001), we get a palindrome (5668448665).

The spelling of 1002406664 in words is "one billion, two million, four hundred six thousand, six hundred sixty-four".