4390628078 has 16 divisors (see below), whose sum is σ = 6601825296. Its totient is φ = 2190027840.

The previous prime is 4390628059. The next prime is 4390628083. The reversal of 4390628078 is 8708260934.

It is a super-2 number, since 2×4390628078² = 38555229838643948168, which contains 22 as substring.

It is a Curzon number.

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, 2191025 + ... + 2193027.

It is an arithmetic number, because the mean of its divisors is an integer number (412614081).

Almost surely, 2^4390628078 is an apocalyptic number.

4390628078 is a deficient number, since it is larger than the sum of its proper divisors (2211197218).

4390628078 is a wasteful number, since it uses less digits than its factorization.

4390628078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 4390628078 is about 66261.8146295436. The cubic root of 4390628078 is about 1637.4782876751.

The spelling of 4390628078 in words is "four billion, three hundred ninety million, six hundred twenty-eight thousand, seventy-eight".