1240211434 has 32 divisors (see below), whose sum is σ = 2441433600. Its totient is φ = 457766640.

The previous prime is 1240211411. The next prime is 1240211443. The reversal of 1240211434 is 4341120421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209004 + ... + 214855.

It is an arithmetic number, because the mean of its divisors is an integer number (76294800).

Almost surely, 2^1240211434 is an apocalyptic number.

1240211434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1240211434 is a deficient number, since it is larger than the sum of its proper divisors (1201222166).

1240211434 is a wasteful number, since it uses less digits than its factorization.

1240211434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423898.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1240211434 is about 35216.6357564149. The cubic root of 1240211434 is about 1074.3981297188.

Adding to 1240211434 its reverse (4341120421), we get a palindrome (5581331855).

The spelling of 1240211434 in words is "one billion, two hundred forty million, two hundred eleven thousand, four hundred thirty-four".