7390223644 has 6 divisors (see below), whose sum is σ = 12932891384. Its totient is φ = 3695111820.

The previous prime is 7390223611. The next prime is 7390223657. The reversal of 7390223644 is 4463220937.

It is a junction number, because it is equal to n+sod(n) for n = 7390223597 and 7390223606.

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, 923777952 + ... + 923777959.

Almost surely, 2^7390223644 is an apocalyptic number.

It is an amenable number.

7390223644 is a deficient number, since it is larger than the sum of its proper divisors (5542667740).

7390223644 is a wasteful number, since it uses less digits than its factorization.

7390223644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847555915 (or 1847555913 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 7390223644 is about 85966.4099750594. The cubic root of 7390223644 is about 1947.8366228315.

The spelling of 7390223644 in words is "seven billion, three hundred ninety million, two hundred twenty-three thousand, six hundred forty-four".