156940038 has 64 divisors (see below), whose sum is σ = 369907200. Its totient is φ = 49183200.

The previous prime is 156940037. The next prime is 156940079. The reversal of 156940038 is 830049651.

156940038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 156939984 and 156940011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156940031) 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, 154420 + ... + 155432.

It is an arithmetic number, because the mean of its divisors is an integer number (5779800).

Almost surely, 2^156940038 is an apocalyptic number.

156940038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156940038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184953600).

156940038 is an abundant number, since it is smaller than the sum of its proper divisors (212967162).

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

156940038 is a wasteful number, since it uses less digits than its factorization.

156940038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 156940038 is about 12527.5711133483. The cubic root of 156940038 is about 539.4003838151.

Adding to 156940038 its reverse (830049651), we get a palindrome (986989689).

The spelling of 156940038 in words is "one hundred fifty-six million, nine hundred forty thousand, thirty-eight".