360640090 has 16 divisors (see below), whose sum is σ = 661401288. Its totient is φ = 141534016.

The previous prime is 360640067. The next prime is 360640123. The reversal of 360640090 is 90046063.

It can be written as a sum of positive squares in 4 ways, for example, as 347412321 + 13227769 = 18639^2 + 3637^2 .

It is a super-2 number, since 2×360640090² = 260122549030416200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339697 + ... + 340756.

Almost surely, 2^360640090 is an apocalyptic number.

360640090 is a deficient number, since it is larger than the sum of its proper divisors (300761198).

360640090 is a wasteful number, since it uses less digits than its factorization.

360640090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680513.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 360640090 is about 18990.5263223535. The cubic root of 360640090 is about 711.8000282688.

It can be divided in two parts, 360 and 640090, that multiplied together give a square (230432400 = 15180²).

The spelling of 360640090 in words is "three hundred sixty million, six hundred forty thousand, ninety".