421541355040 has 96 divisors (see below), whose sum is σ = 1076987197440. Its totient is φ = 154994617344.

The previous prime is 421541355031. The next prime is 421541355043. The reversal of 421541355040 is 40553145124.

It is a super-2 number, since 2×421541355040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421541354987 and 421541355005.

It is not an unprimeable number, because it can be changed into a prime (421541355043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73137 + ... + 921103.

It is an arithmetic number, because the mean of its divisors is an integer number (11218616640).

Almost surely, 2^421541355040 is an apocalyptic number.

421541355040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421541355040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538493598720).

421541355040 is an abundant number, since it is smaller than the sum of its proper divisors (655445842400).

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

421541355040 is a wasteful number, since it uses less digits than its factorization.

421541355040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848234 (or 848226 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 421541355040 in words is "four hundred twenty-one billion, five hundred forty-one million, three hundred fifty-five thousand, forty".