40730284 has 24 divisors (see below), whose sum is σ = 81785088. Its totient is φ = 17386320.

The previous prime is 40730279. The next prime is 40730293. The reversal of 40730284 is 48203704.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 4599 + ... + 10129.

It is an arithmetic number, because the mean of its divisors is an integer number (3407712).

Almost surely, 2^40730284 is an apocalyptic number.

It is an amenable number.

40730284 is an abundant number, since it is smaller than the sum of its proper divisors (41054804).

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

40730284 is a wasteful number, since it uses less digits than its factorization.

40730284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805 (or 5803 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 40730284 is about 6382.0282042623. The cubic root of 40730284 is about 344.0639303392.

Adding to 40730284 its reverse (48203704), we get a palindrome (88933988).

It can be divided in two parts, 40730 and 284, that added together give a palindrome (41014).

The spelling of 40730284 in words is "forty million, seven hundred thirty thousand, two hundred eighty-four".