1366766040 has 32 divisors (see below), whose sum is σ = 4100298480. Its totient is φ = 364470912.

The previous prime is 1366766039. The next prime is 1366766041. The reversal of 1366766040 is 406676631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1366766039) and next prime (1366766041).

It is a self number, because there is not a number n which added to its sum of digits gives 1366766040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366766041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5694739 + ... + 5694978.

Almost surely, 2^1366766040 is an apocalyptic number.

1366766040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366766040 is an abundant number, since it is smaller than the sum of its proper divisors (2733532440).

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

1366766040 is a wasteful number, since it uses less digits than its factorization.

1366766040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389731 (or 11389727 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 1366766040 is about 36969.7990256912. The cubic root of 1366766040 is about 1109.7659436700.

The spelling of 1366766040 in words is "one billion, three hundred sixty-six million, seven hundred sixty-six thousand, forty".