61294464 has 192 divisors, whose sum is σ = 220222080. Its totient is φ = 15897600.

The previous prime is 61294351. The next prime is 61294489. The reversal of 61294464 is 46449216.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×61294464² = 7514022634094592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88359 + ... + 89049.

It is an arithmetic number, because the mean of its divisors is an integer number (1146990).

Almost surely, 2^61294464 is an apocalyptic number.

61294464 is a gapful number since it is divisible by the number (64) 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 61294464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110111040).

61294464 is an abundant number, since it is smaller than the sum of its proper divisors (158927616).

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

61294464 is a wasteful number, since it uses less digits than its factorization.

61294464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 714 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 61294464 is about 7829.0781066483. The cubic root of 61294464 is about 394.2821207702.

The spelling of 61294464 in words is "sixty-one million, two hundred ninety-four thousand, four hundred sixty-four".