122783488 has 18 divisors (see below), whose sum is σ = 245087864. Its totient is φ = 61391616.

The previous prime is 122783483. The next prime is 122783497. The reversal of 122783488 is 884387221.

It is a super-2 number, since 2×122783488² = 30151569850892288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122783483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239556 + ... + 240067.

Almost surely, 2^122783488 is an apocalyptic number.

It is an amenable number.

122783488 is a deficient number, since it is larger than the sum of its proper divisors (122304376).

122783488 is an frugal number, since it uses more digits than its factorization.

122783488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479639 (or 479625 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 122783488 is about 11080.7710923022. The cubic root of 122783488 is about 497.0270083443.

The spelling of 122783488 in words is "one hundred twenty-two million, seven hundred eighty-three thousand, four hundred eighty-eight".