253040739 has 8 divisors (see below), whose sum is σ = 385585920. Its totient is φ = 144594696.

The previous prime is 253040737. The next prime is 253040773. The reversal of 253040739 is 937040352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253040739 - 2¹ = 253040737 is a prime.

It is a super-2 number, since 2×253040739² = 128059231187332242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253040731) 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 7 ways as a sum of consecutive naturals, for example, 6024759 + ... + 6024800.

It is an arithmetic number, because the mean of its divisors is an integer number (48198240).

Almost surely, 2^253040739 is an apocalyptic number.

253040739 is a deficient number, since it is larger than the sum of its proper divisors (132545181).

253040739 is a wasteful number, since it uses less digits than its factorization.

253040739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12049569.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 253040739 is about 15907.2542885314. The cubic root of 253040739 is about 632.5043000952.

The spelling of 253040739 in words is "two hundred fifty-three million, forty thousand, seven hundred thirty-nine".