61406630 has 16 divisors (see below), whose sum is σ = 114343920. Its totient is φ = 23715552.

The previous prime is 61406627. The next prime is 61406677. The reversal of 61406630 is 3660416.

It is a self number, because there is not a number n which added to its sum of digits gives 61406630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105584 + ... + 106163.

It is an arithmetic number, because the mean of its divisors is an integer number (7146495).

Almost surely, 2^61406630 is an apocalyptic number.

61406630 is a deficient number, since it is larger than the sum of its proper divisors (52937290).

61406630 is a wasteful number, since it uses less digits than its factorization.

61406630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211783.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 61406630 is about 7836.2382556939. The cubic root of 61406630 is about 394.5224801560.

The spelling of 61406630 in words is "sixty-one million, four hundred six thousand, six hundred thirty".