61540446 has 16 divisors (see below), whose sum is σ = 134270208. Its totient is φ = 18648600.

The previous prime is 61540429. The next prime is 61540463. The reversal of 61540446 is 64404516.

61540446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61540429) and next prime (61540463).

It is a congruent number.

It is an unprimeable number.

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, 466150 + ... + 466281.

It is an arithmetic number, because the mean of its divisors is an integer number (8391888).

Almost surely, 2^61540446 is an apocalyptic number.

61540446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61540446 is an abundant number, since it is smaller than the sum of its proper divisors (72729762).

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

61540446 is a wasteful number, since it uses less digits than its factorization.

61540446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932447.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 61540446 is about 7844.7718896090. The cubic root of 61540446 is about 394.8088505246.

The spelling of 61540446 in words is "sixty-one million, five hundred forty thousand, four hundred forty-six".