2100019464 has 24 divisors (see below), whose sum is σ = 5687552910. Its totient is φ = 700006464.

The previous prime is 2100019463. The next prime is 2100019483. The reversal of 2100019464 is 4649100012.

It can be written as a sum of positive squares in only one way, i.e., 2038522500 + 61496964 = 45150^2 + 7842^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×2100019464³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100019463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14583397 + ... + 14583540.

Almost surely, 2^2100019464 is an apocalyptic number.

2100019464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2100019464 is an abundant number, since it is smaller than the sum of its proper divisors (3587533446).

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

2100019464 is a wasteful number, since it uses less digits than its factorization.

2100019464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29166949 (or 29166942 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2100019464 is about 45825.9693187171. The cubic root of 2100019464 is about 1280.5831213551.

Adding to 2100019464 its reverse (4649100012), we get a palindrome (6749119476).

The spelling of 2100019464 in words is "two billion, one hundred million, nineteen thousand, four hundred sixty-four".