287425200 has 60 divisors (see below), whose sum is σ = 920722568. Its totient is φ = 76646400.

The previous prime is 287425199. The next prime is 287425231. The reversal of 287425200 is 2524782.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×287425200² = 165226491190080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 118561 + ... + 120960.

Almost surely, 2^287425200 is an apocalyptic number.

287425200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

287425200 is an abundant number, since it is smaller than the sum of its proper divisors (633297368).

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

287425200 is a wasteful number, since it uses less digits than its factorization.

287425200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239542 (or 239531 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 287425200 is about 16953.6190826620. The cubic root of 287425200 is about 659.9458174069.

Adding to 287425200 its reverse (2524782), we get a palindrome (289949982).

The spelling of 287425200 in words is "two hundred eighty-seven million, four hundred twenty-five thousand, two hundred".