1240077677 has 8 divisors (see below), whose sum is σ = 1282200192. Its totient is φ = 1198520800.

The previous prime is 1240077661. The next prime is 1240077701. The reversal of 1240077677 is 7767700421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240077677 - 2⁴ = 1240077661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240077277) 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, 136949 + ... + 145722.

It is an arithmetic number, because the mean of its divisors is an integer number (160275024).

Almost surely, 2^1240077677 is an apocalyptic number.

It is an amenable number.

1240077677 is a deficient number, since it is larger than the sum of its proper divisors (42122515).

1240077677 is a wasteful number, since it uses less digits than its factorization.

1240077677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282819.

The product of its (nonzero) digits is 115248, while the sum is 41.

The square root of 1240077677 is about 35214.7366453307. The cubic root of 1240077677 is about 1074.3595036605.

The spelling of 1240077677 in words is "one billion, two hundred forty million, seventy-seven thousand, six hundred seventy-seven".