981421014 has 16 divisors (see below), whose sum is σ = 2243248128. Its totient is φ = 280405992.

The previous prime is 981420997. The next prime is 981421039. The reversal of 981421014 is 410124189.

It is a Curzon number.

It is a congruent number.

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, 11683542 + ... + 11683625.

It is an arithmetic number, because the mean of its divisors is an integer number (140203008).

Almost surely, 2^981421014 is an apocalyptic number.

981421014 is an abundant number, since it is smaller than the sum of its proper divisors (1261827114).

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

981421014 is a wasteful number, since it uses less digits than its factorization.

981421014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23367179.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 981421014 is about 31327.6397770403. The cubic root of 981421014 is about 993.7682506359.

The spelling of 981421014 in words is "nine hundred eighty-one million, four hundred twenty-one thousand, fourteen".