641354376 has 64 divisors (see below), whose sum is σ = 1828310400. Its totient is φ = 185730048.

The previous prime is 641354369. The next prime is 641354407. The reversal of 641354376 is 673453146.

It is a super-2 number, since 2×641354376² = 822670871228698752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55156 + ... + 65763.

It is an arithmetic number, because the mean of its divisors is an integer number (28567350).

Almost surely, 2^641354376 is an apocalyptic number.

It is an amenable number.

641354376 is an abundant number, since it is smaller than the sum of its proper divisors (1186956024).

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

641354376 is a wasteful number, since it uses less digits than its factorization.

641354376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120958 (or 120954 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 641354376 is about 25324.9753405606. The cubic root of 641354376 is about 862.3813465846.

The spelling of 641354376 in words is "six hundred forty-one million, three hundred fifty-four thousand, three hundred seventy-six".