156793420 has 48 divisors (see below), whose sum is σ = 386487360. Its totient is φ = 52303104.

The previous prime is 156793379. The next prime is 156793421. The reversal of 156793420 is 24397651.

156793420 = T₁₆₂₅ + T₁₆₂₆ + ... + T₁₇₃₅.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 156793420.

It is not an unprimeable number, because it can be changed into a prime (156793421) 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 15 ways as a sum of consecutive naturals, for example, 9955 + ... + 20314.

It is an arithmetic number, because the mean of its divisors is an integer number (8051820).

Almost surely, 2^156793420 is an apocalyptic number.

156793420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156793420 is an abundant number, since it is smaller than the sum of its proper divisors (229693940).

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

156793420 is a wasteful number, since it uses less digits than its factorization.

156793420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30322 (or 30320 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 156793420 is about 12521.7179332550. The cubic root of 156793420 is about 539.2323569106.

The spelling of 156793420 in words is "one hundred fifty-six million, seven hundred ninety-three thousand, four hundred twenty".