1264937950 has 96 divisors (see below), whose sum is σ = 2545551360. Its totient is φ = 466569600.

The previous prime is 1264937911. The next prime is 1264937959. The reversal of 1264937950 is 597394621.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1264937950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264937959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4809519 + ... + 4809781.

It is an arithmetic number, because the mean of its divisors is an integer number (26516160).

Almost surely, 2^1264937950 is an apocalyptic number.

1264937950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264937950 is an abundant number, since it is smaller than the sum of its proper divisors (1280613410).

1264937950 is a wasteful number, since it uses less digits than its factorization.

1264937950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1264937950 is about 35565.9661755448. The cubic root of 1264937950 is about 1081.4914094489.

The spelling of 1264937950 in words is "one billion, two hundred sixty-four million, nine hundred thirty-seven thousand, nine hundred fifty".