1240485199 has 12 divisors (see below), whose sum is σ = 1305118056. Its totient is φ = 1177554672.

The previous prime is 1240485173. The next prime is 1240485221. The reversal of 1240485199 is 9915840421.

It is not a de Polignac number, because 1240485199 - 2²⁹ = 703614287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240485109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404412 + ... + 1405294.

It is an arithmetic number, because the mean of its divisors is an integer number (108759838).

Almost surely, 2^1240485199 is an apocalyptic number.

1240485199 is a deficient number, since it is larger than the sum of its proper divisors (64632857).

1240485199 is an frugal number, since it uses more digits than its factorization.

1240485199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 1240485199 is about 35220.5224123663. The cubic root of 1240485199 is about 1074.4771783273.

The spelling of 1240485199 in words is "one billion, two hundred forty million, four hundred eighty-five thousand, one hundred ninety-nine".