61623042 has 64 divisors (see below), whose sum is σ = 143109120. Its totient is φ = 17527104.

The previous prime is 61623031. The next prime is 61623053. The reversal of 61623042 is 24032616.

It is an interprime number because it is at equal distance from previous prime (61623031) and next prime (61623053).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63243 + ... + 64209.

It is an arithmetic number, because the mean of its divisors is an integer number (2236080).

Almost surely, 2^61623042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61623042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71554560).

61623042 is an abundant number, since it is smaller than the sum of its proper divisors (81486078).

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

61623042 is a wasteful number, since it uses less digits than its factorization.

61623042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 61623042 is about 7850.0345222171. The cubic root of 61623042 is about 394.9854013725.

Adding to 61623042 its reverse (24032616), we get a palindrome (85655658).

The spelling of 61623042 in words is "sixty-one million, six hundred twenty-three thousand, forty-two".