1240131434 has 16 divisors (see below), whose sum is σ = 1942453440. Its totient is φ = 592685280.

The previous prime is 1240131421. The next prime is 1240131449. The reversal of 1240131434 is 4341310421.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 61622 + ... + 79230.

It is an arithmetic number, because the mean of its divisors is an integer number (121403340).

Almost surely, 2^1240131434 is an apocalyptic number.

1240131434 is a deficient number, since it is larger than the sum of its proper divisors (702322006).

1240131434 is a wasteful number, since it uses less digits than its factorization.

1240131434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19165.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1240131434 is about 35215.4999112607. The cubic root of 1240131434 is about 1074.3750278250.

Adding to 1240131434 its reverse (4341310421), we get a palindrome (5581441855).

The spelling of 1240131434 in words is "one billion, two hundred forty million, one hundred thirty-one thousand, four hundred thirty-four".