20010624 has 96 divisors (see below), whose sum is σ = 56238720. Its totient is φ = 6297600.

The previous prime is 20010539. The next prime is 20010637. The reversal of 20010624 is 42601002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-6 number, since 6×20010624⁶ (a number of 45 digits) contains 666666 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 488044 + ... + 488084.

It is an arithmetic number, because the mean of its divisors is an integer number (585820).

Almost surely, 2^20010624 is an apocalyptic number.

20010624 is a gapful number since it is divisible by the number (24) 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 20010624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28119360).

20010624 is an abundant number, since it is smaller than the sum of its proper divisors (36228096).

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

20010624 is an equidigital number, since it uses as much as digits as its factorization.

20010624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20010624 is about 4473.3235966114. The cubic root of 20010624 is about 271.4898164395.

Adding to 20010624 its reverse (42601002), we get a palindrome (62611626).

The spelling of 20010624 in words is "twenty million, ten thousand, six hundred twenty-four".