261023246 has 16 divisors (see below), whose sum is σ = 427828608. Its totient is φ = 118452600.

The previous prime is 261023239. The next prime is 261023263. The reversal of 261023246 is 642320162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4481 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (26739288).

Almost surely, 2^261023246 is an apocalyptic number.

261023246 is a deficient number, since it is larger than the sum of its proper divisors (166805362).

261023246 is a wasteful number, since it uses less digits than its factorization.

261023246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19447.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 261023246 is about 16156.2138510234. The cubic root of 261023246 is about 639.0866251588.

The spelling of 261023246 in words is "two hundred sixty-one million, twenty-three thousand, two hundred forty-six".