1240533404 has 12 divisors (see below), whose sum is σ = 2368291128. Its totient is φ = 563878800.

The previous prime is 1240533397. The next prime is 1240533407. The reversal of 1240533404 is 4043350421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240533407) 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, 14096927 + ... + 14097014.

It is an arithmetic number, because the mean of its divisors is an integer number (197357594).

Almost surely, 2^1240533404 is an apocalyptic number.

It is an amenable number.

1240533404 is a deficient number, since it is larger than the sum of its proper divisors (1127757724).

1240533404 is a wasteful number, since it uses less digits than its factorization.

1240533404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28193956 (or 28193954 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1240533404 is about 35221.2067368510. The cubic root of 1240533404 is about 1074.4910961345.

Adding to 1240533404 its reverse (4043350421), we get a palindrome (5283883825).

The spelling of 1240533404 in words is "one billion, two hundred forty million, five hundred thirty-three thousand, four hundred four".