261028492 has 6 divisors (see below), whose sum is σ = 456799868. Its totient is φ = 130514244.

The previous prime is 261028483. The next prime is 261028501. The reversal of 261028492 is 294820162.

It is an interprime number because it is at equal distance from previous prime (261028483) and next prime (261028501).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32628558 + ... + 32628565.

Almost surely, 2^261028492 is an apocalyptic number.

It is an amenable number.

261028492 is a deficient number, since it is larger than the sum of its proper divisors (195771376).

261028492 is a wasteful number, since it uses less digits than its factorization.

261028492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65257127 (or 65257125 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 261028492 is about 16156.3762026019. The cubic root of 261028492 is about 639.0909065475.

The spelling of 261028492 in words is "two hundred sixty-one million, twenty-eight thousand, four hundred ninety-two".