61224429 has 32 divisors (see below), whose sum is σ = 99277056. Its totient is φ = 32762880.

The previous prime is 61224421. The next prime is 61224461. The reversal of 61224429 is 92442216.

It is not a de Polignac number, because 61224429 - 2³ = 61224421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61224396 and 61224405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61224421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112899 + ... + 113439.

It is an arithmetic number, because the mean of its divisors is an integer number (3102408).

Almost surely, 2^61224429 is an apocalyptic number.

It is an amenable number.

61224429 is a deficient number, since it is larger than the sum of its proper divisors (38052627).

61224429 is a wasteful number, since it uses less digits than its factorization.

61224429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885.

The product of its digits is 6912, while the sum is 30.

The square root of 61224429 is about 7824.6040794407. The cubic root of 61224429 is about 394.1318947396.

The spelling of 61224429 in words is "sixty-one million, two hundred twenty-four thousand, four hundred twenty-nine".