1377029970 has 112 divisors (see below), whose sum is σ = 3796295040. Its totient is φ = 359305632.

The previous prime is 1377029963. The next prime is 1377029981. The reversal of 1377029970 is 799207731.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 340621 + ... + 344639.

Almost surely, 2^1377029970 is an apocalyptic number.

1377029970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377029970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898147520).

1377029970 is an abundant number, since it is smaller than the sum of its proper divisors (2419265070).

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

1377029970 is an equidigital number, since it uses as much as digits as its factorization.

1377029970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091 (or 4076 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The square root of 1377029970 is about 37108.3544501774. The cubic root of 1377029970 is about 1112.5370020096.

The spelling of 1377029970 in words is "one billion, three hundred seventy-seven million, twenty-nine thousand, nine hundred seventy".