40253480 has 16 divisors (see below), whose sum is σ = 90570420. Its totient is φ = 16101376.

The previous prime is 40253453. The next prime is 40253483. The reversal of 40253480 is 8435204.

It can be written as a sum of positive squares in 2 ways, for example, as 39866596 + 386884 = 6314^2 + 622^2 .

It is a super-2 number, since 2×40253480² = 3240685304220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40253483) 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, 503129 + ... + 503208.

Almost surely, 2^40253480 is an apocalyptic number.

40253480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40253480 is an abundant number, since it is smaller than the sum of its proper divisors (50316940).

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

40253480 is a wasteful number, since it uses less digits than its factorization.

40253480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006348 (or 1006344 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40253480 is about 6344.5630267182. The cubic root of 40253480 is about 342.7160765571.

Adding to 40253480 its reverse (8435204), we get a palindrome (48688684).

The spelling of 40253480 in words is "forty million, two hundred fifty-three thousand, four hundred eighty".