623261441 has 6 divisors (see below), whose sum is σ = 685072626. Its totient is φ = 566601200.

The previous prime is 623261437. The next prime is 623261447. The reversal of 623261441 is 144162326.

It can be written as a sum of positive squares in only one way, i.e., 429940225 + 193321216 = 20735^2 + 13904^2 .

It is not a de Polignac number, because 623261441 - 2² = 623261437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623261447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2575340 + ... + 2575581.

It is an arithmetic number, because the mean of its divisors is an integer number (114178771).

Almost surely, 2^623261441 is an apocalyptic number.

It is an amenable number.

623261441 is a deficient number, since it is larger than the sum of its proper divisors (61811185).

623261441 is a wasteful number, since it uses less digits than its factorization.

623261441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150943 (or 5150932 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 623261441 is about 24965.2046056106. The cubic root of 623261441 is about 854.1944653648.

The spelling of 623261441 in words is "six hundred twenty-three million, two hundred sixty-one thousand, four hundred forty-one".