1264211300 has 36 divisors (see below), whose sum is σ = 2992735536. Its totient is φ = 459712800.

The previous prime is 1264211219. The next prime is 1264211317. The reversal of 1264211300 is 31124621.

It is a super-2 number, since 2×1264211300² = 3196460422095380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573542 + ... + 575741.

Almost surely, 2^1264211300 is an apocalyptic number.

1264211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264211300 is an abundant number, since it is smaller than the sum of its proper divisors (1728524236).

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

1264211300 is a wasteful number, since it uses less digits than its factorization.

1264211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149308 (or 1149301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1264211300 is about 35555.7491835005. The cubic root of 1264211300 is about 1081.2842803793.

Adding to 1264211300 its reverse (31124621), we get a palindrome (1295335921).

It can be divided in two parts, 126421 and 1300, that added together give a palindrome (127721).

The spelling of 1264211300 in words is "one billion, two hundred sixty-four million, two hundred eleven thousand, three hundred".