40440774 has 32 divisors (see below), whose sum is σ = 90118656. Its totient is φ = 11993120.

The previous prime is 40440767. The next prime is 40440791. The reversal of 40440774 is 47704404.

It is a congruent number.

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, 3417 + ... + 9620.

It is an arithmetic number, because the mean of its divisors is an integer number (2816208).

Almost surely, 2^40440774 is an apocalyptic number.

40440774 is an abundant number, since it is smaller than the sum of its proper divisors (49677882).

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

40440774 is a wasteful number, since it uses less digits than its factorization.

40440774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13100.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 40440774 is about 6359.3060942213. The cubic root of 40440774 is about 343.2467914805.

It can be divided in two parts, 40440 and 774, that added together give a palindrome (41214).

The spelling of 40440774 in words is "forty million, four hundred forty thousand, seven hundred seventy-four".