287401484 has 12 divisors (see below), whose sum is σ = 520296000. Its totient is φ = 138745488.

The previous prime is 287401469. The next prime is 287401487. The reversal of 287401484 is 484104782.

It is a happy number.

It is a super-2 number, since 2×287401484² = 165199226010804512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (287401487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238684 + ... + 1238915.

It is an arithmetic number, because the mean of its divisors is an integer number (43358000).

Almost surely, 2^287401484 is an apocalyptic number.

It is an amenable number.

287401484 is a deficient number, since it is larger than the sum of its proper divisors (232894516).

287401484 is a wasteful number, since it uses less digits than its factorization.

287401484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477632 (or 2477630 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 287401484 is about 16952.9196305533. The cubic root of 287401484 is about 659.9276657794.

The spelling of 287401484 in words is "two hundred eighty-seven million, four hundred one thousand, four hundred eighty-four".