61422300 has 90 divisors (see below), whose sum is σ = 199133088. Its totient is φ = 16377120.

The previous prime is 61422289. The next prime is 61422301. The reversal of 61422300 is 322416.

It is a happy number.

61422300 is a `hidden beast` number, since 614 + 22 + 30 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61422301) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4309 + ... + 11891.

Almost surely, 2^61422300 is an apocalyptic number.

61422300 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 61422300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99566544).

61422300 is an abundant number, since it is smaller than the sum of its proper divisors (137710788).

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

61422300 is a wasteful number, since it uses less digits than its factorization.

61422300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609 (or 7593 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 61422300 is about 7837.2380338994. The cubic root of 61422300 is about 394.5560359326.

Adding to 61422300 its reverse (322416), we get a palindrome (61744716).

The spelling of 61422300 in words is "sixty-one million, four hundred twenty-two thousand, three hundred".