205151424 has 28 divisors (see below), whose sum is σ = 542796984. Its totient is φ = 68383744.

The previous prime is 205151399. The next prime is 205151431. The reversal of 205151424 is 424151502.

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

It is a junction number, because it is equal to n+sod(n) for n = 205151394 and 205151403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534057 + ... + 534440.

Almost surely, 2^205151424 is an apocalyptic number.

205151424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205151424 is an abundant number, since it is smaller than the sum of its proper divisors (337645560).

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

205151424 is a wasteful number, since it uses less digits than its factorization.

205151424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068512 (or 1068502 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 205151424 is about 14323.1080426003. The cubic root of 205151424 is about 589.7819974058.

The spelling of 205151424 in words is "two hundred five million, one hundred fifty-one thousand, four hundred twenty-four".