630474355 has 64 divisors (see below), whose sum is σ = 927498240. Its totient is φ = 402361344.

The previous prime is 630474353. The next prime is 630474371. The reversal of 630474355 is 553474036.

630474355 = 235² + 236² + ... + 1239².

It is not a de Polignac number, because 630474355 - 2¹ = 630474353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630474353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4964302 + ... + 4964428.

It is an arithmetic number, because the mean of its divisors is an integer number (14492160).

Almost surely, 2^630474355 is an apocalyptic number.

630474355 is a deficient number, since it is larger than the sum of its proper divisors (297023885).

630474355 is a wasteful number, since it uses less digits than its factorization.

630474355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 151200, while the sum is 37.

The square root of 630474355 is about 25109.2483957605. The cubic root of 630474355 is about 857.4769911123.

The spelling of 630474355 in words is "six hundred thirty million, four hundred seventy-four thousand, three hundred fifty-five".