1378284453 has 96 divisors (see below), whose sum is σ = 2692085760. Its totient is φ = 658627200.

The previous prime is 1378284443. The next prime is 1378284463. The reversal of 1378284453 is 3544828731.

It is an interprime number because it is at equal distance from previous prime (1378284443) and next prime (1378284463).

It is not a de Polignac number, because 1378284453 - 2⁴ = 1378284437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1378284399 and 1378284408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378284433) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 355978 + ... + 359828.

It is an arithmetic number, because the mean of its divisors is an integer number (28042560).

Almost surely, 2^1378284453 is an apocalyptic number.

1378284453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1378284453 is a deficient number, since it is larger than the sum of its proper divisors (1313801307).

1378284453 is a wasteful number, since it uses less digits than its factorization.

1378284453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3916 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 1378284453 is about 37125.2535748916. The cubic root of 1378284453 is about 1112.8747422144.

The spelling of 1378284453 in words is "one billion, three hundred seventy-eight million, two hundred eighty-four thousand, four hundred fifty-three".