1164214640 has 20 divisors (see below), whose sum is σ = 2706799224. Its totient is φ = 465685824.

The previous prime is 1164214627. The next prime is 1164214651. The reversal of 1164214640 is 464124611.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7276262 + ... + 7276421.

Almost surely, 2^1164214640 is an apocalyptic number.

1164214640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164214640 is an abundant number, since it is smaller than the sum of its proper divisors (1542584584).

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

1164214640 is a wasteful number, since it uses less digits than its factorization.

1164214640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552696 (or 14552690 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1164214640 is about 34120.5896783746. The cubic root of 1164214640 is about 1051.9885641169.

The spelling of 1164214640 in words is "one billion, one hundred sixty-four million, two hundred fourteen thousand, six hundred forty".