1378464234 has 16 divisors (see below), whose sum is σ = 3150775488. Its totient is φ = 393846912.

The previous prime is 1378464229. The next prime is 1378464247. The reversal of 1378464234 is 4324648731.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 32820577 = 1378464234 / (1 + 3 + 7 + 8 + 4 + 6 + 4 + 2 + 3 + 4).

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, 16410247 + ... + 16410330.

It is an arithmetic number, because the mean of its divisors is an integer number (196923468).

Almost surely, 2^1378464234 is an apocalyptic number.

1378464234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1378464234 is an abundant number, since it is smaller than the sum of its proper divisors (1772311254).

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

1378464234 is a wasteful number, since it uses less digits than its factorization.

1378464234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32820589.

The product of its digits is 387072, while the sum is 42.

The square root of 1378464234 is about 37127.6747723312. The cubic root of 1378464234 is about 1112.9231272521.

The spelling of 1378464234 in words is "one billion, three hundred seventy-eight million, four hundred sixty-four thousand, two hundred thirty-four".