156648390 has 64 divisors (see below), whose sum is σ = 387991296. Its totient is φ = 40456832.

The previous prime is 156648383. The next prime is 156648391. The reversal of 156648390 is 93846651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156648391) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 131377 + ... + 132563.

It is an arithmetic number, because the mean of its divisors is an integer number (6062364).

Almost surely, 2^156648390 is an apocalyptic number.

156648390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156648390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193995648).

156648390 is an abundant number, since it is smaller than the sum of its proper divisors (231342906).

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

156648390 is a wasteful number, since it uses less digits than its factorization.

156648390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 156648390 is about 12515.9254551951. The cubic root of 156648390 is about 539.0660467988.

The spelling of 156648390 in words is "one hundred fifty-six million, six hundred forty-eight thousand, three hundred ninety".