157428744 has 96 divisors (see below), whose sum is σ = 451604160. Its totient is φ = 45612160.

The previous prime is 157428743. The next prime is 157428773. The reversal of 157428744 is 447824751.

It is a junction number, because it is equal to n+sod(n) for n = 157428696 and 157428705.

It is not an unprimeable number, because it can be changed into a prime (157428743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65614 + ... + 67970.

It is an arithmetic number, because the mean of its divisors is an integer number (4704210).

Almost surely, 2^157428744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157428744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225802080).

157428744 is an abundant number, since it is smaller than the sum of its proper divisors (294175416).

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

157428744 is a wasteful number, since it uses less digits than its factorization.

157428744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2396 counting only the distinct ones).

The product of its digits is 250880, while the sum is 42.

The square root of 157428744 is about 12547.0611698517. The cubic root of 157428744 is about 539.9596952085.

The spelling of 157428744 in words is "one hundred fifty-seven million, four hundred twenty-eight thousand, seven hundred forty-four".