641024394 has 16 divisors (see below), whose sum is σ = 1349525280. Its totient is φ = 202428720.

The previous prime is 641024393. The next prime is 641024401. The reversal of 641024394 is 493420146.

It is not an unprimeable number, because it can be changed into a prime (641024393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811397 + ... + 2811624.

It is an arithmetic number, because the mean of its divisors is an integer number (84345330).

Almost surely, 2^641024394 is an apocalyptic number.

641024394 is an abundant number, since it is smaller than the sum of its proper divisors (708500886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641024394 is a wasteful number, since it uses less digits than its factorization.

641024394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623045.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 641024394 is about 25318.4595502965. The cubic root of 641024394 is about 862.2334204923.

The spelling of 641024394 in words is "six hundred forty-one million, twenty-four thousand, three hundred ninety-four".