30454404660 has 36 divisors (see below), whose sum is σ = 92378361348. Its totient is φ = 8121174528.

The previous prime is 30454404587. The next prime is 30454404661. The reversal of 30454404660 is 6640445403.

It can be written as a sum of positive squares in 2 ways, for example, as 12726547344 + 17727857316 = 112812^2 + 133146^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454404661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84595389 + ... + 84595748.

It is an arithmetic number, because the mean of its divisors is an integer number (2566065593).

Almost surely, 2^30454404660 is an apocalyptic number.

30454404660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30454404660 is an abundant number, since it is smaller than the sum of its proper divisors (61923956688).

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

30454404660 is a wasteful number, since it uses less digits than its factorization.

30454404660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169191152 (or 169191147 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 30454404660 in words is "thirty billion, four hundred fifty-four million, four hundred four thousand, six hundred sixty".