61421344 has 24 divisors (see below), whose sum is σ = 121610160. Its totient is φ = 30536256.

The previous prime is 61421341. The next prime is 61421351. The reversal of 61421344 is 44312416.

It is not an unprimeable number, because it can be changed into a prime (61421341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367 + ... + 11089.

It is an arithmetic number, because the mean of its divisors is an integer number (5067090).

Almost surely, 2^61421344 is an apocalyptic number.

It is an amenable number.

61421344 is a deficient number, since it is larger than the sum of its proper divisors (60188816).

61421344 is a wasteful number, since it uses less digits than its factorization.

61421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912 (or 10904 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 61421344 is about 7837.1770427878. The cubic root of 61421344 is about 394.5539889153.

The spelling of 61421344 in words is "sixty-one million, four hundred twenty-one thousand, three hundred forty-four".