61428448 has 24 divisors (see below), whose sum is σ = 121717512. Its totient is φ = 30516096.

The previous prime is 61428443. The next prime is 61428487. The reversal of 61428448 is 84482416.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61428443) 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, 1090 + ... + 11137.

It is an arithmetic number, because the mean of its divisors is an integer number (5071563).

Almost surely, 2^61428448 is an apocalyptic number.

It is an amenable number.

61428448 is a deficient number, since it is larger than the sum of its proper divisors (60289064).

61428448 is a wasteful number, since it uses less digits than its factorization.

61428448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394 (or 12386 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 61428448 is about 7837.6302541010. The cubic root of 61428448 is about 394.5691997161.

The spelling of 61428448 in words is "sixty-one million, four hundred twenty-eight thousand, four hundred forty-eight".