826394144 has 12 divisors (see below), whose sum is σ = 1626963534. Its totient is φ = 413197056.

The previous prime is 826394141. The next prime is 826394197. The reversal of 826394144 is 441493628.

It can be written as a sum of positive squares in only one way, i.e., 817273744 + 9120400 = 28588^2 + 3020^2 .

It is not an unprimeable number, because it can be changed into a prime (826394141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12912377 + ... + 12912440.

Almost surely, 2^826394144 is an apocalyptic number.

It is an amenable number.

826394144 is a deficient number, since it is larger than the sum of its proper divisors (800569390).

826394144 is a wasteful number, since it uses less digits than its factorization.

826394144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25824827 (or 25824819 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 826394144 is about 28747.0719204583. The cubic root of 826394144 is about 938.4167341891.

Adding to 826394144 its sum of digits (41), we get a triangular number (826394185 = T₄₀₆₅₄).

The spelling of 826394144 in words is "eight hundred twenty-six million, three hundred ninety-four thousand, one hundred forty-four".