61294380 has 96 divisors (see below), whose sum is σ = 206492160. Its totient is φ = 13271040.

The previous prime is 61294351. The next prime is 61294489. The reversal of 61294380 is 8349216.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4140 + ... + 11820.

It is an arithmetic number, because the mean of its divisors is an integer number (2150960).

Almost surely, 2^61294380 is an apocalyptic number.

61294380 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 61294380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103246080).

61294380 is an abundant number, since it is smaller than the sum of its proper divisors (145197780).

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

61294380 is a wasteful number, since it uses less digits than its factorization.

61294380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 61294380 is about 7829.0727420302. The cubic root of 61294380 is about 394.2819406576.

The spelling of 61294380 in words is "sixty-one million, two hundred ninety-four thousand, three hundred eighty".