7211094240 has 96 divisors (see below), whose sum is σ = 25959951360. Its totient is φ = 1648249344.

The previous prime is 7211094229. The next prime is 7211094269. The reversal of 7211094240 is 424901127.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×7211094240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7211094198 and 7211094207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069720 + ... + 1076439.

It is an arithmetic number, because the mean of its divisors is an integer number (270416160).

Almost surely, 2^7211094240 is an apocalyptic number.

7211094240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7211094240 is an abundant number, since it is smaller than the sum of its proper divisors (18748857120).

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

7211094240 is a wasteful number, since it uses less digits than its factorization.

7211094240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146184 (or 2146176 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7211094240 is about 84918.1620149659. The cubic root of 7211094240 is about 1931.9700538462.

Adding to 7211094240 its reverse (424901127), we get a palindrome (7635995367).

The spelling of 7211094240 in words is "seven billion, two hundred eleven million, ninety-four thousand, two hundred forty".