286490040 has 32 divisors (see below), whose sum is σ = 859470480. Its totient is φ = 76397312.

The previous prime is 286489949. The next prime is 286490063. The reversal of 286490040 is 40094682.

It is a junction number, because it is equal to n+sod(n) for n = 286489983 and 286490010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193589 + ... + 1193828.

Almost surely, 2^286490040 is an apocalyptic number.

286490040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286490040 is an abundant number, since it is smaller than the sum of its proper divisors (572980440).

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

286490040 is a wasteful number, since it uses less digits than its factorization.

286490040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387431 (or 2387427 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 286490040 is about 16926.0166607504. The cubic root of 286490040 is about 659.2293116129.

The spelling of 286490040 in words is "two hundred eighty-six million, four hundred ninety thousand, forty".