618394254 has 16 divisors (see below), whose sum is σ = 1301882880. Its totient is φ = 195282360.

The previous prime is 618394247. The next prime is 618394313. The reversal of 618394254 is 452493816.

It is a super-2 number, since 2×618394254² = 764822906760433032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712142 + ... + 2712369.

It is an arithmetic number, because the mean of its divisors is an integer number (81367680).

Almost surely, 2^618394254 is an apocalyptic number.

618394254 is an abundant number, since it is smaller than the sum of its proper divisors (683488626).

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

618394254 is a wasteful number, since it uses less digits than its factorization.

618394254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424535.

The product of its digits is 207360, while the sum is 42.

The square root of 618394254 is about 24867.5341358969. The cubic root of 618394254 is about 851.9651206819.

The spelling of 618394254 in words is "six hundred eighteen million, three hundred ninety-four thousand, two hundred fifty-four".