30890440854 has 256 divisors, whose sum is σ = 87736320000. Its totient is φ = 7836808320.

The previous prime is 30890440853. The next prime is 30890440873. The reversal of 30890440854 is 45804409803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30890440853) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30313957 + ... + 30314975.

It is an arithmetic number, because the mean of its divisors is an integer number (342720000).

Almost surely, 2^30890440854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30890440854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43868160000).

30890440854 is an abundant number, since it is smaller than the sum of its proper divisors (56845879146).

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

30890440854 is a wasteful number, since it uses less digits than its factorization.

30890440854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 30890440854 in words is "thirty billion, eight hundred ninety million, four hundred forty thousand, eight hundred fifty-four".