1278446230 has 16 divisors (see below), whose sum is σ = 2304584784. Its totient is φ = 510627040.

The previous prime is 1278446227. The next prime is 1278446263. The reversal of 1278446230 is 326448721.

It is a self number, because there is not a number n which added to its sum of digits gives 1278446230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86761 + ... + 100420.

It is an arithmetic number, because the mean of its divisors is an integer number (144036549).

Almost surely, 2^1278446230 is an apocalyptic number.

1278446230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1278446230 is a deficient number, since it is larger than the sum of its proper divisors (1026138554).

1278446230 is a wasteful number, since it uses less digits than its factorization.

1278446230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187871.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 1278446230 is about 35755.3664503666. The cubic root of 1278446230 is about 1085.3275374336.

The spelling of 1278446230 in words is "one billion, two hundred seventy-eight million, four hundred forty-six thousand, two hundred thirty".