30532155420 has 96 divisors (see below), whose sum is σ = 93231774720. Its totient is φ = 7420458240.

The previous prime is 30532155419. The next prime is 30532155443. The reversal of 30532155420 is 2455123503.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186126 + ... + 309365.

It is an arithmetic number, because the mean of its divisors is an integer number (971164320).

Almost surely, 2^30532155420 is an apocalyptic number.

30532155420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30532155420 is an abundant number, since it is smaller than the sum of its proper divisors (62699619300).

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

30532155420 is a wasteful number, since it uses less digits than its factorization.

30532155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495595 (or 495593 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 30532155420 its reverse (2455123503), we get a palindrome (32987278923).

The spelling of 30532155420 in words is "thirty billion, five hundred thirty-two million, one hundred fifty-five thousand, four hundred twenty".