1377660426 has 8 divisors (see below), whose sum is σ = 2755320864. Its totient is φ = 459220140.

The previous prime is 1377660421. The next prime is 1377660439. The reversal of 1377660426 is 6240667731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1377660426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1377660421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114805030 + ... + 114805041.

It is an arithmetic number, because the mean of its divisors is an integer number (344415108).

Almost surely, 2^1377660426 is an apocalyptic number.

1377660426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1377660426 is a wasteful number, since it uses less digits than its factorization.

1377660426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229610076.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 1377660426 is about 37116.8482767597. The cubic root of 1377660426 is about 1112.7067631689.

The spelling of 1377660426 in words is "one billion, three hundred seventy-seven million, six hundred sixty thousand, four hundred twenty-six".