244421892 has 144 divisors (see below), whose sum is σ = 736270080. Its totient is φ = 67392000.

The previous prime is 244421873. The next prime is 244421911. The reversal of 244421892 is 298124442.

It is an interprime number because it is at equal distance from previous prime (244421873) and next prime (244421911).

It is a super-2 number, since 2×244421892² = 119484122577719328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406392 + ... + 406992.

Almost surely, 2^244421892 is an apocalyptic number.

244421892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244421892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368135040).

244421892 is an abundant number, since it is smaller than the sum of its proper divisors (491848188).

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

244421892 is a wasteful number, since it uses less digits than its factorization.

244421892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 709 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 244421892 is about 15633.9979531788. The cubic root of 244421892 is about 625.2399223945.

It can be divided in two parts, 24442 and 1892, that multiplied together give a palindrome (46244264).

The spelling of 244421892 in words is "two hundred forty-four million, four hundred twenty-one thousand, eight hundred ninety-two".