421440363242 has 16 divisors (see below), whose sum is σ = 660941786880. Its totient is φ = 201162434352.

The previous prime is 421440363241. The next prime is 421440363271. The reversal of 421440363242 is 242363044124.

It is a super-2 number, since 2×421440363242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421440363241) 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, 8976338 + ... + 9023165.

It is an arithmetic number, because the mean of its divisors is an integer number (41308861680).

Almost surely, 2^421440363242 is an apocalyptic number.

421440363242 is a deficient number, since it is larger than the sum of its proper divisors (239501423638).

421440363242 is a wasteful number, since it uses less digits than its factorization.

421440363242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000037.

The product of its (nonzero) digits is 110592, while the sum is 35.

The spelling of 421440363242 in words is "four hundred twenty-one billion, four hundred forty million, three hundred sixty-three thousand, two hundred forty-two".