61426872 has 192 divisors, whose sum is σ = 193939200. Its totient is φ = 17418240.

The previous prime is 61426861. The next prime is 61426877. The reversal of 61426872 is 27862416.

61426872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61426877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 841428 + ... + 841500.

It is an arithmetic number, because the mean of its divisors is an integer number (1010100).

Almost surely, 2^61426872 is an apocalyptic number.

61426872 is a gapful number since it is divisible by the number (62) 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 61426872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96969600).

61426872 is an abundant number, since it is smaller than the sum of its proper divisors (132512328).

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

61426872 is a wasteful number, since it uses less digits than its factorization.

61426872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 151 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 61426872 is about 7837.5297128623. The cubic root of 61426872 is about 394.5658253492.

The spelling of 61426872 in words is "sixty-one million, four hundred twenty-six thousand, eight hundred seventy-two".