1264667416 has 8 divisors (see below), whose sum is σ = 2371251420. Its totient is φ = 632333704.

The previous prime is 1264667389. The next prime is 1264667429. The reversal of 1264667416 is 6147664621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79041706 + ... + 79041721.

Almost surely, 2^1264667416 is an apocalyptic number.

It is an amenable number.

1264667416 is a deficient number, since it is larger than the sum of its proper divisors (1106584004).

1264667416 is a wasteful number, since it uses less digits than its factorization.

1264667416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158083433 (or 158083429 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 1264667416 is about 35562.1627013881. The cubic root of 1264667416 is about 1081.4143039388.

The spelling of 1264667416 in words is "one billion, two hundred sixty-four million, six hundred sixty-seven thousand, four hundred sixteen".