641015470 has 16 divisors (see below), whose sum is σ = 1154612880. Its totient is φ = 256231744.

The previous prime is 641015383. The next prime is 641015513. The reversal of 641015470 is 74510146.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5815 + ... + 36274.

It is an arithmetic number, because the mean of its divisors is an integer number (72163305).

Almost surely, 2^641015470 is an apocalyptic number.

641015470 is a deficient number, since it is larger than the sum of its proper divisors (513597410).

641015470 is a wasteful number, since it uses less digits than its factorization.

641015470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43619.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 641015470 is about 25318.2833146325. The cubic root of 641015470 is about 862.2294192890.

The spelling of 641015470 in words is "six hundred forty-one million, fifteen thousand, four hundred seventy".