1377421441 has 4 divisors (see below), whose sum is σ = 1502641584. Its totient is φ = 1252201300.

The previous prime is 1377421429. The next prime is 1377421469. The reversal of 1377421441 is 1441247731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1377421441 - 2¹³ = 1377413249 is a prime.

It is a super-2 number, since 2×1377421441² = 3794579652253032962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1377421397 and 1377421406.

It is not an unprimeable number, because it can be changed into a prime (1377421471) 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 3 ways as a sum of consecutive naturals, for example, 62610055 + ... + 62610076.

It is an arithmetic number, because the mean of its divisors is an integer number (375660396).

Almost surely, 2^1377421441 is an apocalyptic number.

1377421441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1377421441 is a deficient number, since it is larger than the sum of its proper divisors (125220143).

1377421441 is a wasteful number, since it uses less digits than its factorization.

1377421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125220142.

The product of its digits is 18816, while the sum is 34.

The square root of 1377421441 is about 37113.6287770409. The cubic root of 1377421441 is about 1112.6424184293.

The spelling of 1377421441 in words is "one billion, three hundred seventy-seven million, four hundred twenty-one thousand, four hundred forty-one".