40254464 has 44 divisors (see below), whose sum is σ = 84745800. Its totient is φ = 19058688.

The previous prime is 40254443. The next prime is 40254469. The reversal of 40254464 is 46445204.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18422 + ... + 20490.

Almost surely, 2^40254464 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 40254464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42372900).

40254464 is an abundant number, since it is smaller than the sum of its proper divisors (44491336).

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

40254464 is a wasteful number, since it uses less digits than its factorization.

40254464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 40254464 is about 6344.6405729560. The cubic root of 40254464 is about 342.7188691096.

Adding to 40254464 its reverse (46445204), we get a palindrome (86699668).

The spelling of 40254464 in words is "forty million, two hundred fifty-four thousand, four hundred sixty-four".