253040738 has 8 divisors (see below), whose sum is σ = 381834432. Its totient is φ = 125762596.

The previous prime is 253040737. The next prime is 253040773. The reversal of 253040738 is 837040352.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (253040731) 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, 378470 + ... + 379137.

It is an arithmetic number, because the mean of its divisors is an integer number (47729304).

Almost surely, 2^253040738 is an apocalyptic number.

253040738 is a deficient number, since it is larger than the sum of its proper divisors (128793694).

253040738 is a wasteful number, since it uses less digits than its factorization.

253040738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757776.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 253040738 is about 15907.2542570992. The cubic root of 253040738 is about 632.5042992620.

The spelling of 253040738 in words is "two hundred fifty-three million, forty thousand, seven hundred thirty-eight".