628026328 has 8 divisors (see below), whose sum is σ = 1177549380. Its totient is φ = 314013160.

The previous prime is 628026307. The next prime is 628026331. The reversal of 628026328 is 823620826.

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

It is a super-2 number, since 2×628026328² = 788834137322327168, which 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, 39251638 + ... + 39251653.

Almost surely, 2^628026328 is an apocalyptic number.

It is an amenable number.

628026328 is a deficient number, since it is larger than the sum of its proper divisors (549523052).

628026328 is a wasteful number, since it uses less digits than its factorization.

628026328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78503297 (or 78503293 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 628026328 is about 25060.4534675652. The cubic root of 628026328 is about 856.3657381122.

The spelling of 628026328 in words is "six hundred twenty-eight million, twenty-six thousand, three hundred twenty-eight".