1378270430 has 16 divisors (see below), whose sum is σ = 2485432080. Its totient is φ = 550298112.

The previous prime is 1378270409. The next prime is 1378270433. The reversal of 1378270430 is 340728731.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378270433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120515 + ... + 131454.

It is an arithmetic number, because the mean of its divisors is an integer number (155339505).

Almost surely, 2^1378270430 is an apocalyptic number.

1378270430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1378270430 is a deficient number, since it is larger than the sum of its proper divisors (1107161650).

1378270430 is a wasteful number, since it uses less digits than its factorization.

1378270430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252523.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1378270430 is about 37125.0647137483. The cubic root of 1378270430 is about 1112.8709679825.

The spelling of 1378270430 in words is "one billion, three hundred seventy-eight million, two hundred seventy thousand, four hundred thirty".