61790238 has 24 divisors (see below), whose sum is σ = 134140968. Its totient is φ = 20556432.

The previous prime is 61790233. The next prime is 61790243. The reversal of 61790238 is 83209716.

61790238 is a `hidden beast` number, since 617 + 9 + 0 + 2 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (61790233) and next prime (61790243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61790233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6945 + ... + 13107.

It is an arithmetic number, because the mean of its divisors is an integer number (5589207).

Almost surely, 2^61790238 is an apocalyptic number.

61790238 is an abundant number, since it is smaller than the sum of its proper divisors (72350730).

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

61790238 is a wasteful number, since it uses less digits than its factorization.

61790238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6728 (or 6725 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 61790238 is about 7860.6766884283. The cubic root of 61790238 is about 395.3423043545.

It can be divided in two parts, 6 and 1790238, that added together give a square (1790244 = 1338²).

The spelling of 61790238 in words is "sixty-one million, seven hundred ninety thousand, two hundred thirty-eight".