61454388 has 24 divisors (see below), whose sum is σ = 151828992. Its totient is φ = 19279744.

The previous prime is 61454381. The next prime is 61454429. The reversal of 61454388 is 88345416.

61454388 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 (61454381) 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, 150420 + ... + 150827.

It is an arithmetic number, because the mean of its divisors is an integer number (6326208).

Almost surely, 2^61454388 is an apocalyptic number.

61454388 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61454388 is an abundant number, since it is smaller than the sum of its proper divisors (90374604).

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

61454388 is a wasteful number, since it uses less digits than its factorization.

61454388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301271 (or 301269 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 61454388 is about 7839.2849163683. The cubic root of 61454388 is about 394.6247314500.

The spelling of 61454388 in words is "sixty-one million, four hundred fifty-four thousand, three hundred eighty-eight".