1264376450 has 24 divisors (see below), whose sum is σ = 2409103620. Its totient is φ = 493414400.

The previous prime is 1264376419. The next prime is 1264376467. The reversal of 1264376450 is 546734621.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 203376121 + 1061000329 = 14261^2 + 32573^2 .

It is a super-3 number, since 3×1264376450³ (a number of 28 digits) contains 333 as substring.

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, 306335 + ... + 310434.

Almost surely, 2^1264376450 is an apocalyptic number.

1264376450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264376450 is a deficient number, since it is larger than the sum of its proper divisors (1144727170).

1264376450 is a wasteful number, since it uses less digits than its factorization.

1264376450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616822 (or 616817 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 1264376450 is about 35558.0715168863. The cubic root of 1264376450 is about 1081.3313627838.

The spelling of 1264376450 in words is "one billion, two hundred sixty-four million, three hundred seventy-six thousand, four hundred fifty".