1444740453 has 12 divisors (see below), whose sum is σ = 2247374220. Its totient is φ = 889070976.

The previous prime is 1444740431. The next prime is 1444740457. The reversal of 1444740453 is 3540474441.

1444740453 is a `hidden beast` number, since 144 + 474 + 0 + 45 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 126832644 + 1317907809 = 11262^2 + 36303^2 .

It is not a de Polignac number, because 1444740453 - 2⁶ = 1444740389 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444740457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6173988 + ... + 6174221.

It is an arithmetic number, because the mean of its divisors is an integer number (187281185).

Almost surely, 2^1444740453 is an apocalyptic number.

1444740453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1444740453 is a deficient number, since it is larger than the sum of its proper divisors (802633767).

1444740453 is a wasteful number, since it uses less digits than its factorization.

1444740453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348228 (or 12348225 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 1444740453 is about 38009.7415539753. The cubic root of 1444740453 is about 1130.4810265717.

The spelling of 1444740453 in words is "one billion, four hundred forty-four million, seven hundred forty thousand, four hundred fifty-three".