1240505274 has 16 divisors (see below), whose sum is σ = 2482939008. Its totient is φ = 413180352.

The previous prime is 1240505261. The next prime is 1240505291. The reversal of 1240505274 is 4725050421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71922 + ... + 87485.

It is an arithmetic number, because the mean of its divisors is an integer number (155183688).

Almost surely, 2^1240505274 is an apocalyptic number.

1240505274 is an abundant number, since it is smaller than the sum of its proper divisors (1242433734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240505274 is a wasteful number, since it uses less digits than its factorization.

1240505274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160709.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 1240505274 is about 35220.8074013075. The cubic root of 1240505274 is about 1074.4829744499.

Adding to 1240505274 its reverse (4725050421), we get a palindrome (5965555695).

The spelling of 1240505274 in words is "one billion, two hundred forty million, five hundred five thousand, two hundred seventy-four".