244691388 has 48 divisors (see below), whose sum is σ = 661973760. Its totient is φ = 78016752.

The previous prime is 244691341. The next prime is 244691393. The reversal of 244691388 is 883196442.

It is a happy number.

It is a super-2 number, since 2×244691388² = 119747750722733088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46770 + ... + 51737.

It is an arithmetic number, because the mean of its divisors is an integer number (13791120).

Almost surely, 2^244691388 is an apocalyptic number.

It is an amenable number.

244691388 is an abundant number, since it is smaller than the sum of its proper divisors (417282372).

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

244691388 is a wasteful number, since it uses less digits than its factorization.

244691388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98543 (or 98535 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 244691388 is about 15642.6144873547. The cubic root of 244691388 is about 625.4696314524.

The spelling of 244691388 in words is "two hundred forty-four million, six hundred ninety-one thousand, three hundred eighty-eight".