618929454 has 32 divisors (see below), whose sum is σ = 1454269824. Its totient is φ = 173126880.

The previous prime is 618929453. The next prime is 618929459. The reversal of 618929454 is 454929816.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618929453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359824 + ... + 361539.

It is an arithmetic number, because the mean of its divisors is an integer number (45445932).

Almost surely, 2^618929454 is an apocalyptic number.

618929454 is an abundant number, since it is smaller than the sum of its proper divisors (835340370).

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

618929454 is a wasteful number, since it uses less digits than its factorization.

618929454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721392.

The product of its digits is 622080, while the sum is 48.

The square root of 618929454 is about 24878.2928272822. The cubic root of 618929454 is about 852.2108324588.

The spelling of 618929454 in words is "six hundred eighteen million, nine hundred twenty-nine thousand, four hundred fifty-four".