206147400 has 48 divisors (see below), whose sum is σ = 639058800. Its totient is φ = 54972480.

The previous prime is 206147327. The next prime is 206147429. The reversal of 206147400 is 4741602.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171190 + ... + 172389.

It is an arithmetic number, because the mean of its divisors is an integer number (13313725).

Almost surely, 2^206147400 is an apocalyptic number.

206147400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206147400 is an abundant number, since it is smaller than the sum of its proper divisors (432911400).

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

206147400 is a wasteful number, since it uses less digits than its factorization.

206147400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343598 (or 343589 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 206147400 is about 14357.8340984983. The cubic root of 206147400 is about 590.7348881508.

The spelling of 206147400 in words is "two hundred six million, one hundred forty-seven thousand, four hundred".