156490442 has 8 divisors (see below), whose sum is σ = 236449476. Its totient is φ = 77673952.

The previous prime is 156490381. The next prime is 156490463. The reversal of 156490442 is 244094651.

It can be written as a sum of positive squares in 2 ways, for example, as 151019521 + 5470921 = 12289^2 + 2339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285293 + ... + 285840.

Almost surely, 2^156490442 is an apocalyptic number.

156490442 is a deficient number, since it is larger than the sum of its proper divisors (79959034).

156490442 is a wasteful number, since it uses less digits than its factorization.

156490442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571272.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 156490442 is about 12509.6139828533. The cubic root of 156490442 is about 538.8848064278.

The spelling of 156490442 in words is "one hundred fifty-six million, four hundred ninety thousand, four hundred forty-two".