1214390484 has 36 divisors (see below), whose sum is σ = 3127633236. Its totient is φ = 397158528.

The previous prime is 1214390479. The next prime is 1214390503. The reversal of 1214390484 is 4840934121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 590490000 + 623900484 = 24300^2 + 24978^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316329 + ... + 320144.

It is an arithmetic number, because the mean of its divisors is an integer number (86878701).

Almost surely, 2^1214390484 is an apocalyptic number.

It is an amenable number.

1214390484 is an abundant number, since it is smaller than the sum of its proper divisors (1913242752).

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

1214390484 is a wasteful number, since it uses less digits than its factorization.

1214390484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636536 (or 636531 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1214390484 is about 34848.1058882689. The cubic root of 1214390484 is about 1066.8895266548.

The spelling of 1214390484 in words is "one billion, two hundred fourteen million, three hundred ninety thousand, four hundred eighty-four".