421204013140 has 48 divisors (see below), whose sum is σ = 887593883904. Its totient is φ = 167897984000.

The previous prime is 421204013123. The next prime is 421204013141. The reversal of 421204013140 is 41310402124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421204013141) 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, 40742052 + ... + 40752388.

It is an arithmetic number, because the mean of its divisors is an integer number (18491539248).

Almost surely, 2^421204013140 is an apocalyptic number.

It is an amenable number.

421204013140 is an abundant number, since it is smaller than the sum of its proper divisors (466389870764).

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

421204013140 is a wasteful number, since it uses less digits than its factorization.

421204013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17208 (or 17206 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 421204013140 its reverse (41310402124), we get a palindrome (462514415264).

The spelling of 421204013140 in words is "four hundred twenty-one billion, two hundred four million, thirteen thousand, one hundred forty".