1385387974 has 16 divisors (see below), whose sum is σ = 2090760336. Its totient is φ = 688480000.

The previous prime is 1385387959. The next prime is 1385387981. The reversal of 1385387974 is 4797835831.

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 7 ways as a sum of consecutive naturals, for example, 258894 + ... + 264190.

It is an arithmetic number, because the mean of its divisors is an integer number (130672521).

Almost surely, 2^1385387974 is an apocalyptic number.

1385387974 is a deficient number, since it is larger than the sum of its proper divisors (705372362).

1385387974 is a wasteful number, since it uses less digits than its factorization.

1385387974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071.

The product of its digits is 5080320, while the sum is 55.

The square root of 1385387974 is about 37220.8002869363. The cubic root of 1385387974 is about 1114.7833435878.

The spelling of 1385387974 in words is "one billion, three hundred eighty-five million, three hundred eighty-seven thousand, nine hundred seventy-four".