1214378528 has 24 divisors (see below), whose sum is σ = 2608154640. Its totient is φ = 551990080.

The previous prime is 1214378513. The next prime is 1214378537. The reversal of 1214378528 is 8258734121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724618 + ... + 1725321.

It is an arithmetic number, because the mean of its divisors is an integer number (108673110).

Almost surely, 2^1214378528 is an apocalyptic number.

It is an amenable number.

1214378528 is an abundant number, since it is smaller than the sum of its proper divisors (1393776112).

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

1214378528 is a wasteful number, since it uses less digits than its factorization.

1214378528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449960 (or 3449952 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 1214378528 is about 34847.9343433725. The cubic root of 1214378528 is about 1066.8860253722.

The spelling of 1214378528 in words is "one billion, two hundred fourteen million, three hundred seventy-eight thousand, five hundred twenty-eight".