157563438 has 32 divisors (see below), whose sum is σ = 333590400. Its totient is φ = 49528416.

The previous prime is 157563407. The next prime is 157563443. The reversal of 157563438 is 834365751.

It is a self number, because there is not a number n which added to its sum of digits gives 157563438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3048 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (10424700).

Almost surely, 2^157563438 is an apocalyptic number.

157563438 is an abundant number, since it is smaller than the sum of its proper divisors (176026962).

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

157563438 is a wasteful number, since it uses less digits than its factorization.

157563438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136.

The product of its digits is 302400, while the sum is 42.

The square root of 157563438 is about 12552.4275739795. The cubic root of 157563438 is about 540.1136454913.

The spelling of 157563438 in words is "one hundred fifty-seven million, five hundred sixty-three thousand, four hundred thirty-eight".