20235440610 has 384 divisors, whose sum is σ = 69408368640. Its totient is φ = 3962649600.

The previous prime is 20235440609. The next prime is 20235440633. The reversal of 20235440610 is 1604453202.

20235440610 is a `hidden beast` number, since 2 + 0 + 2 + 3 + 5 + 4 + 40 + 610 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 41212465 + ... + 41212955.

It is an arithmetic number, because the mean of its divisors is an integer number (180750960).

Almost surely, 2^20235440610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20235440610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34704184320).

20235440610 is an abundant number, since it is smaller than the sum of its proper divisors (49172928030).

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

20235440610 is a wasteful number, since it uses less digits than its factorization.

20235440610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20235440610 its reverse (1604453202), we get a palindrome (21839893812).

The spelling of 20235440610 in words is "twenty billion, two hundred thirty-five million, four hundred forty thousand, six hundred ten".