1385400 has 48 divisors (see below), whose sum is σ = 4296600. Its totient is φ = 369280.

The previous prime is 1385399. The next prime is 1385401. The reversal of 1385400 is 45831.

It is an interprime number because it is at equal distance from previous prime (1385399) and next prime (1385401).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555 + ... + 1754.

2^1385400 is an apocalyptic number.

1385400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385400 is an abundant number, since it is smaller than the sum of its proper divisors (2911200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385400 is a wasteful number, since it uses less digits than its factorization.

1385400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1385400 is about 1177.0301610409. The cubic root of 1385400 is about 111.4786569242.

The spelling of 1385400 in words is "one million, three hundred eighty-five thousand, four hundred".