253916040 has 256 divisors, whose sum is σ = 921600000. Its totient is φ = 55883520.

The previous prime is 253916023. The next prime is 253916041. The reversal of 253916040 is 40619352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 253915989 and 253916007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253916041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1275861 + ... + 1276059.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^253916040 is an apocalyptic number.

253916040 is a gapful number since it is divisible by the number (20) 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 253916040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460800000).

253916040 is an abundant number, since it is smaller than the sum of its proper divisors (667683960).

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

253916040 is a wasteful number, since it uses less digits than its factorization.

253916040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 253916040 is about 15934.7431733304. The cubic root of 253916040 is about 633.2327658107.

The spelling of 253916040 in words is "two hundred fifty-three million, nine hundred sixteen thousand, forty".