1240432412 has 24 divisors (see below), whose sum is σ = 2272336416. Its totient is φ = 591364928.

The previous prime is 1240432397. The next prime is 1240432429. The reversal of 1240432412 is 2142340421.

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

It is a congruent number.

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, 7898 + ... + 50430.

It is an arithmetic number, because the mean of its divisors is an integer number (94680684).

Almost surely, 2^1240432412 is an apocalyptic number.

It is an amenable number.

1240432412 is a deficient number, since it is larger than the sum of its proper divisors (1031904004).

1240432412 is a wasteful number, since it uses less digits than its factorization.

1240432412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42877 (or 42875 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1240432412 is about 35219.7730259580. The cubic root of 1240432412 is about 1074.4619371858.

Adding to 1240432412 its reverse (2142340421), we get a palindrome (3382772833).

The spelling of 1240432412 in words is "one billion, two hundred forty million, four hundred thirty-two thousand, four hundred twelve".