2071213440 has 64 divisors (see below), whose sum is σ = 6601998960. Its totient is φ = 552323072.

The previous prime is 2071213421. The next prime is 2071213477. The reversal of 2071213440 is 443121702.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2071213440² = 8579850228073267200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2071213440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537459 + ... + 541298.

Almost surely, 2^2071213440 is an apocalyptic number.

2071213440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2071213440 is an abundant number, since it is smaller than the sum of its proper divisors (4530785520).

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

2071213440 is a wasteful number, since it uses less digits than its factorization.

2071213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078779 (or 1078767 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2071213440 is about 45510.5860212764. The cubic root of 2071213440 is about 1274.7008786960.

The spelling of 2071213440 in words is "two billion, seventy-one million, two hundred thirteen thousand, four hundred forty".