1385166574 has 32 divisors (see below), whose sum is σ = 2301167232. Its totient is φ = 620100000.

The previous prime is 1385166491. The next prime is 1385166649. The reversal of 1385166574 is 4756615831.

It is a happy number.

It is a congruent number.

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, 424449 + ... + 427699.

It is an arithmetic number, because the mean of its divisors is an integer number (71911476).

Almost surely, 2^1385166574 is an apocalyptic number.

1385166574 is a deficient number, since it is larger than the sum of its proper divisors (916000658).

1385166574 is a wasteful number, since it uses less digits than its factorization.

1385166574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552.

The product of its digits is 604800, while the sum is 46.

The square root of 1385166574 is about 37217.8260246350. The cubic root of 1385166574 is about 1114.7239556075.

The spelling of 1385166574 in words is "one billion, three hundred eighty-five million, one hundred sixty-six thousand, five hundred seventy-four".