61442432 has 16 divisors (see below), whose sum is σ = 122405100. Its totient is φ = 30721152.

The previous prime is 61442431. The next prime is 61442461. The reversal of 61442432 is 23424416.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61442431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239882 + ... + 240137.

Almost surely, 2^61442432 is an apocalyptic number.

It is an amenable number.

61442432 is a deficient number, since it is larger than the sum of its proper divisors (60962668).

61442432 is an equidigital number, since it uses as much as digits as its factorization.

61442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480033 (or 480021 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 61442432 is about 7838.5223097214. The cubic root of 61442432 is about 394.5991382719.

Adding to 61442432 its reverse (23424416), we get a palindrome (84866848).

The spelling of 61442432 in words is "sixty-one million, four hundred forty-two thousand, four hundred thirty-two".