1240200656 has 40 divisors (see below), whose sum is σ = 2458771200. Its totient is φ = 605730944.

The previous prime is 1240200629. The next prime is 1240200667. The reversal of 1240200656 is 6560020421.

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, 485270 + ... + 487818.

It is an arithmetic number, because the mean of its divisors is an integer number (61469280).

Almost surely, 2^1240200656 is an apocalyptic number.

1240200656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1240200656 is a deficient number, since it is larger than the sum of its proper divisors (1218570544).

1240200656 is a wasteful number, since it uses less digits than its factorization.

1240200656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1240200656 is about 35216.4827318118. The cubic root of 1240200656 is about 1074.3950173740.

The spelling of 1240200656 in words is "one billion, two hundred forty million, two hundred thousand, six hundred fifty-six".