240262890 has 64 divisors (see below), whose sum is σ = 663828480. Its totient is φ = 54515520.

The previous prime is 240262879. The next prime is 240262903. The reversal of 240262890 is 98262042.

It is a super-2 number, since 2×240262890² = 115452512622304200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25075 + ... + 33305.

It is an arithmetic number, because the mean of its divisors is an integer number (10372320).

Almost surely, 2^240262890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240262890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331914240).

240262890 is an abundant number, since it is smaller than the sum of its proper divisors (423565590).

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

240262890 is a wasteful number, since it uses less digits than its factorization.

240262890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387.

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

The square root of 240262890 is about 15500.4158008745. The cubic root of 240262890 is about 621.6733240460.

The spelling of 240262890 in words is "two hundred forty million, two hundred sixty-two thousand, eight hundred ninety".