1264228494 has 64 divisors (see below), whose sum is σ = 2811283200. Its totient is φ = 377169408.

The previous prime is 1264228463. The next prime is 1264228499. The reversal of 1264228494 is 4948224621.

It is a super-3 number, since 3×1264228494³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264228499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194997 + ... + 201375.

It is an arithmetic number, because the mean of its divisors is an integer number (43926300).

Almost surely, 2^1264228494 is an apocalyptic number.

1264228494 is an abundant number, since it is smaller than the sum of its proper divisors (1547054706).

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

1264228494 is a wasteful number, since it uses less digits than its factorization.

1264228494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497.

The product of its digits is 221184, while the sum is 42.

The square root of 1264228494 is about 35555.9909719867. The cubic root of 1264228494 is about 1081.2891823862.

The spelling of 1264228494 in words is "one billion, two hundred sixty-four million, two hundred twenty-eight thousand, four hundred ninety-four".