61770232 has 32 divisors (see below), whose sum is σ = 120556800. Its totient is φ = 29635200.

The previous prime is 61770223. The next prime is 61770239. The reversal of 61770232 is 23207716.

It is a super-2 number, since 2×61770232² = 7631123122667648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61770232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61770239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41257 + ... + 42727.

It is an arithmetic number, because the mean of its divisors is an integer number (3767400).

Almost surely, 2^61770232 is an apocalyptic number.

It is an amenable number.

61770232 is a deficient number, since it is larger than the sum of its proper divisors (58786568).

61770232 is a wasteful number, since it uses less digits than its factorization.

61770232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 61770232 is about 7859.4040486541. The cubic root of 61770232 is about 395.2996327171.

Adding to 61770232 its reverse (23207716), we get a palindrome (84977948).

The spelling of 61770232 in words is "sixty-one million, seven hundred seventy thousand, two hundred thirty-two".