1385642698 has 32 divisors (see below), whose sum is σ = 2403872640. Its totient is φ = 592028160.

The previous prime is 1385642689. The next prime is 1385642701. The reversal of 1385642698 is 8962465831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365758 + ... + 369526.

It is an arithmetic number, because the mean of its divisors is an integer number (75121020).

Almost surely, 2^1385642698 is an apocalyptic number.

1385642698 is a deficient number, since it is larger than the sum of its proper divisors (1018229942).

1385642698 is a wasteful number, since it uses less digits than its factorization.

1385642698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782.

The product of its digits is 2488320, while the sum is 52.

The square root of 1385642698 is about 37224.2219260524. The cubic root of 1385642698 is about 1114.8516625175.

The spelling of 1385642698 in words is "one billion, three hundred eighty-five million, six hundred forty-two thousand, six hundred ninety-eight".