1452299778 has 24 divisors (see below), whose sum is σ = 3148016508. Its totient is φ = 483889632.

The previous prime is 1452299777. The next prime is 1452299791. The reversal of 1452299778 is 8779922541.

It can be written as a sum of positive squares in 2 ways, for example, as 1282857489 + 169442289 = 35817^2 + 13017^2 .

It is not an unprimeable number, because it can be changed into a prime (1452299777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28300 + ... + 60872.

Almost surely, 2^1452299778 is an apocalyptic number.

1452299778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1452299778 is an abundant number, since it is smaller than the sum of its proper divisors (1695716730).

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

1452299778 is a wasteful number, since it uses less digits than its factorization.

1452299778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35058 (or 35055 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 1452299778 is about 38109.0511296201. The cubic root of 1452299778 is about 1132.4492721748.

The spelling of 1452299778 in words is "one billion, four hundred fifty-two million, two hundred ninety-nine thousand, seven hundred seventy-eight".