40260072 has 64 divisors (see below), whose sum is σ = 105960960. Its totient is φ = 12729600.

The previous prime is 40260071. The next prime is 40260089. The reversal of 40260072 is 27006204.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40260071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38922 + ... + 39942.

It is an arithmetic number, because the mean of its divisors is an integer number (1655640).

Almost surely, 2^40260072 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 40260072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52980480).

40260072 is an abundant number, since it is smaller than the sum of its proper divisors (65700888).

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

40260072 is a wasteful number, since it uses less digits than its factorization.

40260072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 40260072 is about 6345.0825053737. The cubic root of 40260072 is about 342.7347835200.

Adding to 40260072 its reverse (27006204), we get a palindrome (67266276).

The spelling of 40260072 in words is "forty million, two hundred sixty thousand, seventy-two".