628040125 has 16 divisors (see below), whose sum is σ = 793728000. Its totient is φ = 496064400.

The previous prime is 628040107. The next prime is 628040143. The reversal of 628040125 is 521040826.

It is an interprime number because it is at equal distance from previous prime (628040107) and next prime (628040143).

It is not a de Polignac number, because 628040125 - 2⁹ = 628039613 is a prime.

It is a super-2 number, since 2×628040125² = 788868797220031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 628040093 and 628040102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21925 + ... + 41674.

It is an arithmetic number, because the mean of its divisors is an integer number (49608000).

Almost surely, 2^628040125 is an apocalyptic number.

It is an amenable number.

628040125 is a deficient number, since it is larger than the sum of its proper divisors (165687875).

628040125 is an equidigital number, since it uses as much as digits as its factorization.

628040125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63693 (or 63683 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 628040125 is about 25060.7287404018. The cubic root of 628040125 is about 856.3720091824.

The spelling of 628040125 in words is "six hundred twenty-eight million, forty thousand, one hundred twenty-five".