1214639712 has 480 divisors, whose sum is σ = 4379870880. Its totient is φ = 325140480.

The previous prime is 1214639633. The next prime is 1214639731. The reversal of 1214639712 is 2179364121.

1214639712 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 639 + 7 + 12 = 666.

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 79 ways as a sum of consecutive naturals, for example, 10748968 + ... + 10749080.

It is an arithmetic number, because the mean of its divisors is an integer number (9124731).

Almost surely, 2^1214639712 is an apocalyptic number.

1214639712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214639712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189935440).

1214639712 is an abundant number, since it is smaller than the sum of its proper divisors (3165231168).

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

1214639712 is a wasteful number, since it uses less digits than its factorization.

1214639712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 171 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1214639712 is about 34851.6816237036. The cubic root of 1214639712 is about 1066.9625071770.

The spelling of 1214639712 in words is "one billion, two hundred fourteen million, six hundred thirty-nine thousand, seven hundred twelve".