981554430 has 32 divisors (see below), whose sum is σ = 2356773408. Its totient is φ = 261632000.

The previous prime is 981554429. The next prime is 981554437. The reversal of 981554430 is 34455189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981554437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78190 + ... + 89870.

It is an arithmetic number, because the mean of its divisors is an integer number (73649169).

Almost surely, 2^981554430 is an apocalyptic number.

981554430 is an abundant number, since it is smaller than the sum of its proper divisors (1375218978).

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

981554430 is a wasteful number, since it uses less digits than its factorization.

981554430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14492.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 981554430 is about 31329.7690703267. The cubic root of 981554430 is about 993.8132800968.

The spelling of 981554430 in words is "nine hundred eighty-one million, five hundred fifty-four thousand, four hundred thirty".