1377415042 has 4 divisors (see below), whose sum is σ = 2066122566. Its totient is φ = 688707520.

The previous prime is 1377415009. The next prime is 1377415057. The reversal of 1377415042 is 2405147731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405147731 = 7 ⋅343592533.

It can be written as a sum of positive squares in only one way, i.e., 1260321001 + 117094041 = 35501^2 + 10821^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1377414989 and 1377415007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344353759 + ... + 344353762.

Almost surely, 2^1377415042 is an apocalyptic number.

1377415042 is a deficient number, since it is larger than the sum of its proper divisors (688707524).

1377415042 is an equidigital number, since it uses as much as digits as its factorization.

1377415042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688707523.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1377415042 is about 37113.5425687174. The cubic root of 1377415042 is about 1112.6406954491.

The spelling of 1377415042 in words is "one billion, three hundred seventy-seven million, four hundred fifteen thousand, forty-two".