628450834 has 8 divisors (see below), whose sum is σ = 1028374128. Its totient is φ = 285659460.

The previous prime is 628450819. The next prime is 628450841. The reversal of 628450834 is 438054826.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14282952 + ... + 14282995.

It is an arithmetic number, because the mean of its divisors is an integer number (128546766).

Almost surely, 2^628450834 is an apocalyptic number.

628450834 is a deficient number, since it is larger than the sum of its proper divisors (399923294).

628450834 is a wasteful number, since it uses less digits than its factorization.

628450834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565960.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 628450834 is about 25068.9216760514. The cubic root of 628450834 is about 856.5586443118.

The spelling of 628450834 in words is "six hundred twenty-eight million, four hundred fifty thousand, eight hundred thirty-four".