61672260 has 96 divisors (see below), whose sum is σ = 196947072. Its totient is φ = 14284800.

The previous prime is 61672253. The next prime is 61672267. The reversal of 61672260 is 6227616.

It is an interprime number because it is at equal distance from previous prime (61672253) and next prime (61672267).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (61672267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10935 + ... + 15585.

It is an arithmetic number, because the mean of its divisors is an integer number (2051532).

Almost surely, 2^61672260 is an apocalyptic number.

61672260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61672260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98473536).

61672260 is an abundant number, since it is smaller than the sum of its proper divisors (135274812).

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

61672260 is a wasteful number, since it uses less digits than its factorization.

61672260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4691 counting only the distinct ones).

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

The square root of 61672260 is about 7853.1687871839. The cubic root of 61672260 is about 395.0905309772.

Adding to 61672260 its reverse (6227616), we get a palindrome (67899876).

The spelling of 61672260 in words is "sixty-one million, six hundred seventy-two thousand, two hundred sixty".