1380400577 has 8 divisors (see below), whose sum is σ = 1413023040. Its totient is φ = 1347801840.

The previous prime is 1380400547. The next prime is 1380400603. The reversal of 1380400577 is 7750040831.

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 1380400577 - 2⁶ = 1380400513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380400547) 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, 178052 + ... + 185642.

It is an arithmetic number, because the mean of its divisors is an integer number (176627880).

Almost surely, 2^1380400577 is an apocalyptic number.

It is an amenable number.

1380400577 is a deficient number, since it is larger than the sum of its proper divisors (32622463).

1380400577 is an equidigital number, since it uses as much as digits as its factorization.

1380400577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11863.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1380400577 is about 37153.7424359916. The cubic root of 1380400577 is about 1113.4439949902.

The spelling of 1380400577 in words is "one billion, three hundred eighty million, four hundred thousand, five hundred seventy-seven".