1240040395 has 8 divisors (see below), whose sum is σ = 1623325680. Its totient is φ = 901847520.

The previous prime is 1240040387. The next prime is 1240040411. The reversal of 1240040395 is 5930400421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240040395 - 2³ = 1240040387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11273040 + ... + 11273149.

It is an arithmetic number, because the mean of its divisors is an integer number (202915710).

Almost surely, 2^1240040395 is an apocalyptic number.

1240040395 is a deficient number, since it is larger than the sum of its proper divisors (383285285).

1240040395 is a wasteful number, since it uses less digits than its factorization.

1240040395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22546205.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1240040395 is about 35214.2072891042. The cubic root of 1240040395 is about 1074.3487369499.

The spelling of 1240040395 in words is "one billion, two hundred forty million, forty thousand, three hundred ninety-five".