614423444 has 18 divisors (see below), whose sum is σ = 1134813834. Its totient is φ = 291042000.

The previous prime is 614423429. The next prime is 614423473. The reversal of 614423444 is 444324416.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 460960900 + 153462544 = 21470^2 + 12388^2 .

It is a super-2 number, since 2×614423444² = 755032337073642272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 614423444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211307 + ... + 214194.

It is an arithmetic number, because the mean of its divisors is an integer number (63045213).

Almost surely, 2^614423444 is an apocalyptic number.

It is an amenable number.

614423444 is a deficient number, since it is larger than the sum of its proper divisors (520390390).

614423444 is a wasteful number, since it uses less digits than its factorization.

614423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425543 (or 425522 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 614423444 is about 24787.5663186203. The cubic root of 614423444 is about 850.1376681285.

The spelling of 614423444 in words is "six hundred fourteen million, four hundred twenty-three thousand, four hundred forty-four".