61626264 has 64 divisors (see below), whose sum is σ = 181770240. Its totient is φ = 17038080.

The previous prime is 61626263. The next prime is 61626277. The reversal of 61626264 is 46262616.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61626263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 11124.

It is an arithmetic number, because the mean of its divisors is an integer number (2840160).

Almost surely, 2^61626264 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 61626264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90885120).

61626264 is an abundant number, since it is smaller than the sum of its proper divisors (120143976).

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

61626264 is a wasteful number, since it uses less digits than its factorization.

61626264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880 (or 11876 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 61626264 is about 7850.2397415620. The cubic root of 61626264 is about 394.9922852737.

The spelling of 61626264 in words is "sixty-one million, six hundred twenty-six thousand, two hundred sixty-four".