40265764 has 48 divisors (see below), whose sum is σ = 88381440. Its totient is φ = 15593760.

The previous prime is 40265713. The next prime is 40265773. The reversal of 40265764 is 46756204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73339 + ... + 73885.

It is an arithmetic number, because the mean of its divisors is an integer number (1841280).

Almost surely, 2^40265764 is an apocalyptic number.

40265764 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40265764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44190720).

40265764 is an abundant number, since it is smaller than the sum of its proper divisors (48115676).

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

40265764 is a wasteful number, since it uses less digits than its factorization.

40265764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 40265764 is about 6345.5310258480. The cubic root of 40265764 is about 342.7509347948.

It can be divided in two parts, 402 and 65764, that added together give a palindrome (66166).

The spelling of 40265764 in words is "forty million, two hundred sixty-five thousand, seven hundred sixty-four".