1001394464 has 48 divisors (see below), whose sum is σ = 2261649600. Its totient is φ = 427547904.

The previous prime is 1001394439. The next prime is 1001394479. The reversal of 1001394464 is 4644931001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1001394464.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51947 + ... + 68565.

It is an arithmetic number, because the mean of its divisors is an integer number (47117700).

Almost surely, 2^1001394464 is an apocalyptic number.

1001394464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001394464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130824800).

1001394464 is an abundant number, since it is smaller than the sum of its proper divisors (1260255136).

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

1001394464 is a wasteful number, since it uses less digits than its factorization.

1001394464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905 (or 16897 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1001394464 is about 31644.8173323848. The cubic root of 1001394464 is about 1000.4646054417.

The spelling of 1001394464 in words is "one billion, one million, three hundred ninety-four thousand, four hundred sixty-four".