244515420 has 72 divisors (see below), whose sum is σ = 785335824. Its totient is φ = 61367808.

The previous prime is 244515373. The next prime is 244515457. The reversal of 244515420 is 24515442.

It is a congruent number.

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, 36894 + ... + 43013.

It is an arithmetic number, because the mean of its divisors is an integer number (10907442).

Almost surely, 2^244515420 is an apocalyptic number.

244515420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244515420 is an abundant number, since it is smaller than the sum of its proper divisors (540820404).

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

244515420 is a wasteful number, since it uses less digits than its factorization.

244515420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79939 (or 79934 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 244515420 is about 15636.9888405665. The cubic root of 244515420 is about 625.3196615452.

The spelling of 244515420 in words is "two hundred forty-four million, five hundred fifteen thousand, four hundred twenty".