62421440 has 56 divisors (see below), whose sum is σ = 150248112. Its totient is φ = 24698880.

The previous prime is 62421413. The next prime is 62421449. The reversal of 62421440 is 4412426.

62421440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62421449) 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 7 ways as a sum of consecutive naturals, for example, 30035 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (2683002).

Almost surely, 2^62421440 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 62421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75124056).

62421440 is an abundant number, since it is smaller than the sum of its proper divisors (87826672).

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

62421440 is a wasteful number, since it uses less digits than its factorization.

62421440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 62421440 is about 7900.7240174556. The cubic root of 62421440 is about 396.6839183075.

Adding to 62421440 its reverse (4412426), we get a palindrome (66833866).

The spelling of 62421440 in words is "sixty-two million, four hundred twenty-one thousand, four hundred forty".