1240102395 has 24 divisors (see below), whose sum is σ = 2456584416. Its totient is φ = 566903808.

The previous prime is 1240102361. The next prime is 1240102399. The reversal of 1240102395 is 5932010421.

It is not a de Polignac number, because 1240102395 - 2⁷ = 1240102267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240102399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1968102 + ... + 1968731.

It is an arithmetic number, because the mean of its divisors is an integer number (102357684).

Almost surely, 2^1240102395 is an apocalyptic number.

1240102395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1240102395 is a deficient number, since it is larger than the sum of its proper divisors (1216482021).

1240102395 is a wasteful number, since it uses less digits than its factorization.

1240102395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936851 (or 3936848 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1240102395 is about 35215.0876046049. The cubic root of 1240102395 is about 1074.3666418805.

The spelling of 1240102395 in words is "one billion, two hundred forty million, one hundred two thousand, three hundred ninety-five".