1377077140 has 24 divisors (see below), whose sum is σ = 2893697352. Its totient is φ = 550481280.

The previous prime is 1377077101. The next prime is 1377077147. The reversal of 1377077140 is 417707731.

It can be written as a sum of positive squares in 4 ways, for example, as 189447696 + 1187629444 = 13764^2 + 34462^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1377077140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377077147) 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, 11710 + ... + 53770.

It is an arithmetic number, because the mean of its divisors is an integer number (120570723).

Almost surely, 2^1377077140 is an apocalyptic number.

1377077140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377077140 is an abundant number, since it is smaller than the sum of its proper divisors (1516620212).

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

1377077140 is a wasteful number, since it uses less digits than its factorization.

1377077140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43707 (or 43705 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 1377077140 is about 37108.9900158978. The cubic root of 1377077140 is about 1112.5497051394.

The spelling of 1377077140 in words is "one billion, three hundred seventy-seven million, seventy-seven thousand, one hundred forty".