641436546 has 16 divisors (see below), whose sum is σ = 1300447584. Its totient is φ = 210883104.

The previous prime is 641436541. The next prime is 641436559. The reversal of 641436546 is 645634146.

It is a super-2 number, since 2×641436546² = 822881685088820232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641436541) 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, 731796 + ... + 732671.

It is an arithmetic number, because the mean of its divisors is an integer number (81277974).

Almost surely, 2^641436546 is an apocalyptic number.

641436546 is an abundant number, since it is smaller than the sum of its proper divisors (659011038).

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

641436546 is a wasteful number, since it uses less digits than its factorization.

641436546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464545.

The product of its digits is 207360, while the sum is 39.

The square root of 641436546 is about 25326.5976001515. The cubic root of 641436546 is about 862.4181743000.

The spelling of 641436546 in words is "six hundred forty-one million, four hundred thirty-six thousand, five hundred forty-six".