61629242 has 4 divisors (see below), whose sum is σ = 92443866. Its totient is φ = 30814620.

The previous prime is 61629229. The next prime is 61629247. The reversal of 61629242 is 24292616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47872561 + 13756681 = 6919^2 + 3709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61629199 and 61629208.

It is not an unprimeable number, because it can be changed into a prime (61629247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15407309 + ... + 15407312.

Almost surely, 2^61629242 is an apocalyptic number.

61629242 is a deficient number, since it is larger than the sum of its proper divisors (30814624).

61629242 is a wasteful number, since it uses less digits than its factorization.

61629242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30814623.

The product of its digits is 10368, while the sum is 32.

The square root of 61629242 is about 7850.4294150065. The cubic root of 61629242 is about 394.9986476480.

The spelling of 61629242 in words is "sixty-one million, six hundred twenty-nine thousand, two hundred forty-two".