2069947800 has 72 divisors (see below), whose sum is σ = 6951580740. Its totient is φ = 551985600.

The previous prime is 2069947751. The next prime is 2069947801. The reversal of 2069947800 is 87499602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069947801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 573186 + ... + 576785.

Almost surely, 2^2069947800 is an apocalyptic number.

2069947800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2069947800 is an abundant number, since it is smaller than the sum of its proper divisors (4881632940).

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

2069947800 is a wasteful number, since it uses less digits than its factorization.

2069947800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149993 (or 1149981 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2069947800 is about 45496.6789996808. The cubic root of 2069947800 is about 1274.4411853343.

The spelling of 2069947800 in words is "two billion, sixty-nine million, nine hundred forty-seven thousand, eight hundred".