61144408 has 16 divisors (see below), whose sum is σ = 123464880. Its totient is φ = 28220448.

The previous prime is 61144403. The next prime is 61144411. The reversal of 61144408 is 80444116.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61144403) 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, 293860 + ... + 294067.

It is an arithmetic number, because the mean of its divisors is an integer number (7716555).

Almost surely, 2^61144408 is an apocalyptic number.

It is an amenable number.

61144408 is an abundant number, since it is smaller than the sum of its proper divisors (62320472).

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

61144408 is a wasteful number, since it uses less digits than its factorization.

61144408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587946 (or 587942 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 61144408 is about 7819.4889858609. The cubic root of 61144408 is about 393.9601083063.

The spelling of 61144408 in words is "sixty-one million, one hundred forty-four thousand, four hundred eight".