1377657346 has 16 divisors (see below), whose sum is σ = 2226426048. Its totient is φ = 635562000.

The previous prime is 1377657343. The next prime is 1377657389. The reversal of 1377657346 is 6437567731.

It is a self number, because there is not a number n which added to its sum of digits gives 1377657346.

It is not an unprimeable number, because it can be changed into a prime (1377657343) 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, 55941 + ... + 76711.

It is an arithmetic number, because the mean of its divisors is an integer number (139151628).

Almost surely, 2^1377657346 is an apocalyptic number.

1377657346 is a deficient number, since it is larger than the sum of its proper divisors (848768702).

1377657346 is a wasteful number, since it uses less digits than its factorization.

1377657346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337.

The product of its digits is 2222640, while the sum is 49.

The square root of 1377657346 is about 37116.8067861447. The cubic root of 1377657346 is about 1112.7059339516.

The spelling of 1377657346 in words is "one billion, three hundred seventy-seven million, six hundred fifty-seven thousand, three hundred forty-six".