61614740 has 48 divisors (see below), whose sum is σ = 141886080. Its totient is φ = 22289280.

The previous prime is 61614733. The next prime is 61614767. The reversal of 61614740 is 4741616.

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, 49769 + ... + 50991.

It is an arithmetic number, because the mean of its divisors is an integer number (2955960).

Almost surely, 2^61614740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61614740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70943040).

61614740 is an abundant number, since it is smaller than the sum of its proper divisors (80271340).

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

61614740 is a wasteful number, since it uses less digits than its factorization.

61614740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61614740 is about 7849.5057169226. The cubic root of 61614740 is about 394.9676627910.

It can be divided in two parts, 6161 and 4740, that added together give a palindrome (10901).

The spelling of 61614740 in words is "sixty-one million, six hundred fourteen thousand, seven hundred forty".