40053920 has 48 divisors (see below), whose sum is σ = 96253920. Its totient is φ = 15746304.

The previous prime is 40053913. The next prime is 40053929. The reversal of 40053920 is 2935004.

It is not an unprimeable number, because it can be changed into a prime (40053929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7319 + ... + 11561.

It is an arithmetic number, because the mean of its divisors is an integer number (2005290).

Almost surely, 2^40053920 is an apocalyptic number.

40053920 is a gapful number since it is divisible by the number (40) 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 40053920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48126960).

40053920 is an abundant number, since it is smaller than the sum of its proper divisors (56200000).

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

40053920 is a wasteful number, since it uses less digits than its factorization.

40053920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317 (or 4309 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 40053920 is about 6328.8166350432. The cubic root of 40053920 is about 342.1487901764.

Adding to 40053920 its reverse (2935004), we get a palindrome (42988924).

The spelling of 40053920 in words is "forty million, fifty-three thousand, nine hundred twenty".