285474651 has 16 divisors (see below), whose sum is σ = 474555648. Its totient is φ = 148298400.

The previous prime is 285474641. The next prime is 285474653. The reversal of 285474651 is 156474582.

It is a happy number.

It is not a de Polignac number, because 285474651 - 2⁵ = 285474619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285474653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617680 + ... + 618141.

It is an arithmetic number, because the mean of its divisors is an integer number (29659728).

Almost surely, 2^285474651 is an apocalyptic number.

285474651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

285474651 is a deficient number, since it is larger than the sum of its proper divisors (189080997).

285474651 is a wasteful number, since it uses less digits than its factorization.

285474651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235842.

The product of its digits is 268800, while the sum is 42.

The square root of 285474651 is about 16895.9951171868. The cubic root of 285474651 is about 658.4495677406.

The spelling of 285474651 in words is "two hundred eighty-five million, four hundred seventy-four thousand, six hundred fifty-one".