157223808 has 256 divisors, whose sum is σ = 543782400. Its totient is φ = 43794432.

The previous prime is 157223777. The next prime is 157223809. The reversal of 157223808 is 808322751.

157223808 is a `hidden beast` number, since 1 + 572 + 2 + 3 + 80 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157223809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1620816 + ... + 1620912.

It is an arithmetic number, because the mean of its divisors is an integer number (2124150).

Almost surely, 2^157223808 is an apocalyptic number.

157223808 is a gapful number since it is divisible by the number (18) 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 157223808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271891200).

157223808 is an abundant number, since it is smaller than the sum of its proper divisors (386558592).

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

157223808 is an equidigital number, since it uses as much as digits as its factorization.

157223808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 157223808 is about 12538.8918170626. The cubic root of 157223808 is about 539.7252923738.

The spelling of 157223808 in words is "one hundred fifty-seven million, two hundred twenty-three thousand, eight hundred eight".