628262229 has 16 divisors (see below), whose sum is σ = 980703360. Its totient is φ = 350250240.

The previous prime is 628262209. The next prime is 628262249. The reversal of 628262229 is 922262826.

It is an interprime number because it is at equal distance from previous prime (628262209) and next prime (628262249).

It is not a de Polignac number, because 628262229 - 2⁵ = 628262197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628262209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363984 + ... + 365705.

It is an arithmetic number, because the mean of its divisors is an integer number (61293960).

Almost surely, 2^628262229 is an apocalyptic number.

It is an amenable number.

628262229 is a deficient number, since it is larger than the sum of its proper divisors (352441131).

628262229 is a wasteful number, since it uses less digits than its factorization.

628262229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729740.

The product of its digits is 82944, while the sum is 39.

The square root of 628262229 is about 25065.1596643628. The cubic root of 628262229 is about 856.4729481851.

The spelling of 628262229 in words is "six hundred twenty-eight million, two hundred sixty-two thousand, two hundred twenty-nine".