157238828 has 6 divisors (see below), whose sum is σ = 275167956. Its totient is φ = 78619412.

The previous prime is 157238821. The next prime is 157238849. The reversal of 157238828 is 828832751.

157238828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (157238821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19654850 + ... + 19654857.

It is an arithmetic number, because the mean of its divisors is an integer number (45861326).

Almost surely, 2^157238828 is an apocalyptic number.

It is an amenable number.

157238828 is a deficient number, since it is larger than the sum of its proper divisors (117929128).

157238828 is a wasteful number, since it uses less digits than its factorization.

157238828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39309711 (or 39309709 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 157238828 is about 12539.4907392605. The cubic root of 157238828 is about 539.7424789476.

The spelling of 157238828 in words is "one hundred fifty-seven million, two hundred thirty-eight thousand, eight hundred twenty-eight".