40453968 has 20 divisors (see below), whose sum is σ = 104506208. Its totient is φ = 13484640.

The previous prime is 40453961. The next prime is 40453969. The reversal of 40453968 is 86935404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40453961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421348 + ... + 421443.

Almost surely, 2^40453968 is an apocalyptic number.

40453968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40453968 is an abundant number, since it is smaller than the sum of its proper divisors (64052240).

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

40453968 is a wasteful number, since it uses less digits than its factorization.

40453968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842802 (or 842796 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 40453968 is about 6360.3433869564. The cubic root of 40453968 is about 343.2841160690.

It can be divided in two parts, 4045396 and 8, that added together give a palindrome (4045404).

The spelling of 40453968 in words is "forty million, four hundred fifty-three thousand, nine hundred sixty-eight".