30652020 has 288 divisors, whose sum is σ = 118879488. Its totient is φ = 6469632.

The previous prime is 30652009. The next prime is 30652057. The reversal of 30652020 is 2025603.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30651984 and 30652002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 578314 + ... + 578366.

It is an arithmetic number, because the mean of its divisors is an integer number (412776).

Almost surely, 2^30652020 is an apocalyptic number.

30652020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30652020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59439744).

30652020 is an abundant number, since it is smaller than the sum of its proper divisors (88227468).

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

30652020 is a wasteful number, since it uses less digits than its factorization.

30652020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30652020 is about 5536.4266454095. The cubic root of 30652020 is about 312.9582227072.

Adding to 30652020 its reverse (2025603), we get a palindrome (32677623).

It can be divided in two parts, 306 and 52020, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 30652020 in words is "thirty million, six hundred fifty-two thousand, twenty".