1240051406 has 8 divisors (see below), whose sum is σ = 2029175064. Its totient is φ = 563659720.

The previous prime is 1240051363. The next prime is 1240051409. The reversal of 1240051406 is 6041500421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240051409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28182965 + ... + 28183008.

It is an arithmetic number, because the mean of its divisors is an integer number (253646883).

Almost surely, 2^1240051406 is an apocalyptic number.

1240051406 is a deficient number, since it is larger than the sum of its proper divisors (789123658).

1240051406 is a wasteful number, since it uses less digits than its factorization.

1240051406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56365986.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1240051406 is about 35214.3636319045. The cubic root of 1240051406 is about 1074.3519168514.

Adding to 1240051406 its reverse (6041500421), we get a palindrome (7281551827).

The spelling of 1240051406 in words is "one billion, two hundred forty million, fifty-one thousand, four hundred six".