20276095840 has 576 divisors, whose sum is σ = 68716916352. Its totient is φ = 5482414080.

The previous prime is 20276095837. The next prime is 20276095883. The reversal of 20276095840 is 4859067202.

It is a super-2 number, since 2×20276095840² (a number of 21 digits) contains 22 as substring.

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, 29949582 + ... + 29950258.

It is an arithmetic number, because the mean of its divisors is an integer number (119300202).

Almost surely, 2^20276095840 is an apocalyptic number.

20276095840 is a gapful number since it is divisible by the number (20) 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 20276095840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34358458176).

20276095840 is an abundant number, since it is smaller than the sum of its proper divisors (48440820512).

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

20276095840 is a wasteful number, since it uses less digits than its factorization.

20276095840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20276095840 in words is "twenty billion, two hundred seventy-six million, ninety-five thousand, eight hundred forty".