1377983240 has 32 divisors (see below), whose sum is σ = 3112274880. Its totient is φ = 549093312.

The previous prime is 1377983237. The next prime is 1377983249. The reversal of 1377983240 is 423897731.

It is a junction number, because it is equal to n+sod(n) for n = 1377983191 and 1377983200.

It is not an unprimeable number, because it can be changed into a prime (1377983249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54974 + ... + 76013.

It is an arithmetic number, because the mean of its divisors is an integer number (97258590).

Almost surely, 2^1377983240 is an apocalyptic number.

1377983240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377983240 is an abundant number, since it is smaller than the sum of its proper divisors (1734291640).

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

1377983240 is a wasteful number, since it uses less digits than its factorization.

1377983240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131261 (or 131257 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1377983240 is about 37121.1966401947. The cubic root of 1377983240 is about 1112.7936663617.

The spelling of 1377983240 in words is "one billion, three hundred seventy-seven million, nine hundred eighty-three thousand, two hundred forty".