1377225440 has 24 divisors (see below), whose sum is σ = 3253695480. Its totient is φ = 550890112.

The previous prime is 1377225379. The next prime is 1377225461. The reversal of 1377225440 is 445227731.

It is a self number, because there is not a number n which added to its sum of digits gives 1377225440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4303670 + ... + 4303989.

It is an arithmetic number, because the mean of its divisors is an integer number (135570645).

Almost surely, 2^1377225440 is an apocalyptic number.

1377225440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377225440 is an abundant number, since it is smaller than the sum of its proper divisors (1876470040).

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

1377225440 is an equidigital number, since it uses as much as digits as its factorization.

1377225440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607674 (or 8607666 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 1377225440 is about 37110.9881302021. The cubic root of 1377225440 is about 1112.5896412219.

The spelling of 1377225440 in words is "one billion, three hundred seventy-seven million, two hundred twenty-five thousand, four hundred forty".