40242510 has 96 divisors (see below), whose sum is σ = 130470912. Its totient is φ = 8360640.

The previous prime is 40242509. The next prime is 40242511. The reversal of 40242510 is 1524204.

It is an interprime number because it is at equal distance from previous prime (40242509) and next prime (40242511).

It is a super-2 number, since 2×40242510² = 3238919222200200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4027 + ... + 9833.

It is an arithmetic number, because the mean of its divisors is an integer number (1359072).

Almost surely, 2^40242510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40242510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65235456).

40242510 is an abundant number, since it is smaller than the sum of its proper divisors (90228402).

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

40242510 is a wasteful number, since it uses less digits than its factorization.

40242510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838 (or 5835 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40242510 is about 6343.6984480664. The cubic root of 40242510 is about 342.6849410550.

Adding to 40242510 its reverse (1524204), we get a palindrome (41766714).

The spelling of 40242510 in words is "forty million, two hundred forty-two thousand, five hundred ten".