61418830 has 32 divisors (see below), whose sum is σ = 126956160. Its totient is φ = 21157920.

The previous prime is 61418827. The next prime is 61418857. The reversal of 61418830 is 3881416.

It is a junction number, because it is equal to n+sod(n) for n = 61418792 and 61418801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12604 + ... + 16783.

It is an arithmetic number, because the mean of its divisors is an integer number (3967380).

Almost surely, 2^61418830 is an apocalyptic number.

61418830 is an abundant number, since it is smaller than the sum of its proper divisors (65537330).

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

61418830 is a wasteful number, since it uses less digits than its factorization.

61418830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29424.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 61418830 is about 7837.0166517623. The cubic root of 61418830 is about 394.5486057581.

The spelling of 61418830 in words is "sixty-one million, four hundred eighteen thousand, eight hundred thirty".