261073038 has 32 divisors (see below), whose sum is σ = 541094400. Its totient is φ = 83918016.

The previous prime is 261073037. The next prime is 261073079. The reversal of 261073038 is 830370162.

It is a junction number, because it is equal to n+sod(n) for n = 261072996 and 261073014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261073031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13978 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (16909200).

Almost surely, 2^261073038 is an apocalyptic number.

261073038 is an abundant number, since it is smaller than the sum of its proper divisors (280021362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261073038 is a wasteful number, since it uses less digits than its factorization.

261073038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 261073038 is about 16157.7547326353. The cubic root of 261073038 is about 639.1272593150.

The spelling of 261073038 in words is "two hundred sixty-one million, seventy-three thousand, thirty-eight".