245401404203420 has 24 divisors (see below), whose sum is σ = 515343713375904. Its totient is φ = 98160416053056.

The previous prime is 245401404203383. The next prime is 245401404203437. The reversal of 245401404203420 is 24302404104542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5269694 + ... + 22772186.

It is an arithmetic number, because the mean of its divisors is an integer number (21472654723996).

Almost surely, 2^{245401404203420} is an apocalyptic number.

245401404203420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245401404203420 is an abundant number, since it is smaller than the sum of its proper divisors (269942309172484).

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

245401404203420 is a wasteful number, since it uses less digits than its factorization.

245401404203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18203549 (or 18203547 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 245401404203420 its reverse (24302404104542), we get a palindrome (269703808307962).

The spelling of 245401404203420 in words is "two hundred forty-five trillion, four hundred one billion, four hundred four million, two hundred three thousand, four hundred twenty".