7121384344 has 8 divisors (see below), whose sum is σ = 13352595660. Its totient is φ = 3560692168.

The previous prime is 7121384329. The next prime is 7121384363. The reversal of 7121384344 is 4434831217.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7121384344² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445086514 + ... + 445086529.

Almost surely, 2^7121384344 is an apocalyptic number.

It is an amenable number.

7121384344 is a deficient number, since it is larger than the sum of its proper divisors (6231211316).

7121384344 is a wasteful number, since it uses less digits than its factorization.

7121384344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890173049 (or 890173045 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 7121384344 is about 84388.2950651333. The cubic root of 7121384344 is about 1923.9250168520.

The spelling of 7121384344 in words is "seven billion, one hundred twenty-one million, three hundred eighty-four thousand, three hundred forty-four".