40030340 has 96 divisors (see below), whose sum is σ = 102816000. Its totient is φ = 12787200.

The previous prime is 40030313. The next prime is 40030357. The reversal of 40030340 is 4303004.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 268586 + ... + 268734.

It is an arithmetic number, because the mean of its divisors is an integer number (1071000).

Almost surely, 2^40030340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40030340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51408000).

40030340 is an abundant number, since it is smaller than the sum of its proper divisors (62785660).

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

40030340 is a wasteful number, since it uses less digits than its factorization.

40030340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 40030340 is about 6326.9534532822. The cubic root of 40030340 is about 342.0816352663.

Adding to 40030340 its reverse (4303004), we get a palindrome (44333344).

The spelling of 40030340 in words is "forty million, thirty thousand, three hundred forty".