440046157 has 2 divisors, whose sum is σ = 440046158. Its totient is φ = 440046156.

The previous prime is 440046109. The next prime is 440046181. The reversal of 440046157 is 751640044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224220676 + 215825481 = 14974^2 + 14691^2 .

It is a cyclic number.

It is not a de Polignac number, because 440046157 - 2¹⁹ = 439521869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440046107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220023078 + 220023079.

It is an arithmetic number, because the mean of its divisors is an integer number (220023079).

Almost surely, 2^440046157 is an apocalyptic number.

It is an amenable number.

440046157 is a deficient number, since it is larger than the sum of its proper divisors (1).

440046157 is an equidigital number, since it uses as much as digits as its factorization.

440046157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 440046157 is about 20977.2771588688. The cubic root of 440046157 is about 760.6170871128.

The spelling of 440046157 in words is "four hundred forty million, forty-six thousand, one hundred fifty-seven".