1240966556 has 6 divisors (see below), whose sum is σ = 2171691480. Its totient is φ = 620483276.

The previous prime is 1240966511. The next prime is 1240966567. The reversal of 1240966556 is 6556690421.

It is a super-2 number, since 2×1240966556² = 3079995986221002272, which contains 22 as substring.

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, 155120816 + ... + 155120823.

It is an arithmetic number, because the mean of its divisors is an integer number (361948580).

Almost surely, 2^1240966556 is an apocalyptic number.

It is an amenable number.

1240966556 is a deficient number, since it is larger than the sum of its proper divisors (930724924).

1240966556 is a wasteful number, since it uses less digits than its factorization.

1240966556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310241643 (or 310241641 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 1240966556 is about 35227.3552228946. The cubic root of 1240966556 is about 1074.6161401429.

The spelling of 1240966556 in words is "one billion, two hundred forty million, nine hundred sixty-six thousand, five hundred fifty-six".