61324620 has 48 divisors (see below), whose sum is σ = 196240128. Its totient is φ = 14016960.

The previous prime is 61324591. The next prime is 61324621. The reversal of 61324620 is 2642316.

It is not an unprimeable number, because it can be changed into a prime (61324621) 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, 72586 + ... + 73425.

It is an arithmetic number, because the mean of its divisors is an integer number (4088336).

Almost surely, 2^61324620 is an apocalyptic number.

61324620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61324620 is an abundant number, since it is smaller than the sum of its proper divisors (134915508).

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

61324620 is a wasteful number, since it uses less digits than its factorization.

61324620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146030 (or 146028 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 61324620 is about 7831.0037670786. The cubic root of 61324620 is about 394.3467705580.

Adding to 61324620 its reverse (2642316), we get a palindrome (63966936).

The spelling of 61324620 in words is "sixty-one million, three hundred twenty-four thousand, six hundred twenty".