1377154740 has 96 divisors (see below), whose sum is σ = 4254034176. Its totient is φ = 330716160.

The previous prime is 1377154733. The next prime is 1377154741. The reversal of 1377154740 is 474517731.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377154741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10449 + ... + 53511.

It is an arithmetic number, because the mean of its divisors is an integer number (44312856).

Almost surely, 2^1377154740 is an apocalyptic number.

1377154740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377154740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127017088).

1377154740 is an abundant number, since it is smaller than the sum of its proper divisors (2876879436).

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

1377154740 is a wasteful number, since it uses less digits than its factorization.

1377154740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43129 (or 43127 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 1377154740 is about 37110.0355699102. The cubic root of 1377154740 is about 1112.5706025975.

The spelling of 1377154740 in words is "one billion, three hundred seventy-seven million, one hundred fifty-four thousand, seven hundred forty".