7120644 has 12 divisors (see below), whose sum is σ = 16614864. Its totient is φ = 2373544.

The previous prime is 7120621. The next prime is 7120657. The reversal of 7120644 is 4460217.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296682 + ... + 296705.

It is an arithmetic number, because the mean of its divisors is an integer number (1384572).

Almost surely, 2^7120644 is an apocalyptic number.

It is an amenable number.

7120644 is an abundant number, since it is smaller than the sum of its proper divisors (9494220).

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

7120644 is a wasteful number, since it uses less digits than its factorization.

7120644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593394 (or 593392 counting only the distinct ones).

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

The square root of 7120644 is about 2668.4534846986. The cubic root of 7120644 is about 192.3858343687.

The spelling of 7120644 in words is "seven million, one hundred twenty thousand, six hundred forty-four".