157449838 has 48 divisors (see below), whose sum is σ = 299633040. Its totient is φ = 61496064.

The previous prime is 157449833. The next prime is 157449857. The reversal of 157449838 is 838944751.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 157449791 and 157449800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157449833) 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, 104998 + ... + 106486.

It is an arithmetic number, because the mean of its divisors is an integer number (6242355).

Almost surely, 2^157449838 is an apocalyptic number.

157449838 is a deficient number, since it is larger than the sum of its proper divisors (142183202).

157449838 is a wasteful number, since it uses less digits than its factorization.

157449838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1594 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 157449838 is about 12547.9017369439. The cubic root of 157449838 is about 539.9838106715.

The spelling of 157449838 in words is "one hundred fifty-seven million, four hundred forty-nine thousand, eight hundred thirty-eight".