1240401212 has 6 divisors (see below), whose sum is σ = 2170702128. Its totient is φ = 620200604.

The previous prime is 1240401203. The next prime is 1240401221. The reversal of 1240401212 is 2121040421.

It is an interprime number because it is at equal distance from previous prime (1240401203) and next prime (1240401221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155050148 + ... + 155050155.

It is an arithmetic number, because the mean of its divisors is an integer number (361783688).

Almost surely, 2^1240401212 is an apocalyptic number.

It is an amenable number.

1240401212 is a deficient number, since it is larger than the sum of its proper divisors (930300916).

1240401212 is a wasteful number, since it uses less digits than its factorization.

1240401212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310100307 (or 310100305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1240401212 is about 35219.3300901650. The cubic root of 1240401212 is about 1074.4529286354.

Adding to 1240401212 its reverse (2121040421), we get a palindrome (3361441633).

The spelling of 1240401212 in words is "one billion, two hundred forty million, four hundred one thousand, two hundred twelve".