156994284 has 48 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 50250816.

The previous prime is 156994267. The next prime is 156994291. The reversal of 156994284 is 482499651.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68119 + ... + 70385.

It is an arithmetic number, because the mean of its divisors is an integer number (7938000).

Almost surely, 2^156994284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156994284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512000).

156994284 is an abundant number, since it is smaller than the sum of its proper divisors (224029716).

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

156994284 is a wasteful number, since it uses less digits than its factorization.

156994284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2500 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 156994284 is about 12529.7359908340. The cubic root of 156994284 is about 539.4625241990.

The spelling of 156994284 in words is "one hundred fifty-six million, nine hundred ninety-four thousand, two hundred eighty-four".