981425214 has 128 divisors (see below), whose sum is σ = 2775168000. Its totient is φ = 254862720.

The previous prime is 981425191. The next prime is 981425233. The reversal of 981425214 is 412524189.

981425214 is a `hidden beast` number, since 98 + 1 + 42 + 521 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 201334 + ... + 206150.

It is an arithmetic number, because the mean of its divisors is an integer number (21681000).

Almost surely, 2^981425214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981425214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387584000).

981425214 is an abundant number, since it is smaller than the sum of its proper divisors (1793742786).

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

981425214 is a wasteful number, since it uses less digits than its factorization.

981425214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860 (or 4840 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 981425214 is about 31327.7068104258. The cubic root of 981425214 is about 993.7696682472.

The spelling of 981425214 in words is "nine hundred eighty-one million, four hundred twenty-five thousand, two hundred fourteen".