1240401152 has 36 divisors (see below), whose sum is σ = 2478462420. Its totient is φ = 619573248.

The previous prime is 1240401131. The next prime is 1240401161. The reversal of 1240401152 is 2511040421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 745071616 + 495329536 = 27296^2 + 22256^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349724 + ... + 353252.

Almost surely, 2^1240401152 is an apocalyptic number.

It is an amenable number.

1240401152 is a deficient number, since it is larger than the sum of its proper divisors (1238061268).

1240401152 is an equidigital number, since it uses as much as digits as its factorization.

1240401152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918 (or 4904 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1240401152 is about 35219.3292383600. The cubic root of 1240401152 is about 1074.4529113111.

Adding to 1240401152 its reverse (2511040421), we get a palindrome (3751441573).

The spelling of 1240401152 in words is "one billion, two hundred forty million, four hundred one thousand, one hundred fifty-two".