421351442023400 has 96 divisors (see below), whose sum is σ = 1119600754328640. Its totient is φ = 144462089640960.

The previous prime is 421351442023387. The next prime is 421351442023439. The reversal of 421351442023400 is 4320244153124.

It is a super-2 number, since 2×421351442023400² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166679687 + ... + 169188713.

It is an arithmetic number, because the mean of its divisors is an integer number (11662507857590).

Almost surely, 2^{421351442023400} is an apocalyptic number.

421351442023400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421351442023400 is an abundant number, since it is smaller than the sum of its proper divisors (698249312305240).

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

421351442023400 is a wasteful number, since it uses less digits than its factorization.

421351442023400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629003 (or 2628994 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 421351442023400 its reverse (4320244153124), we get a palindrome (425671686176524).

The spelling of 421351442023400 in words is "four hundred twenty-one trillion, three hundred fifty-one billion, four hundred forty-two million, twenty-three thousand, four hundred".