61229260 has 12 divisors (see below), whose sum is σ = 128581488. Its totient is φ = 24491696.

The previous prime is 61229251. The next prime is 61229327. The reversal of 61229260 is 6292216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530712 + ... + 1530751.

It is an arithmetic number, because the mean of its divisors is an integer number (10715124).

Almost surely, 2^61229260 is an apocalyptic number.

It is an amenable number.

61229260 is an abundant number, since it is smaller than the sum of its proper divisors (67352228).

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

61229260 is a wasteful number, since it uses less digits than its factorization.

61229260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061472 (or 3061470 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61229260 is about 7824.9127790666. The cubic root of 61229260 is about 394.1422609781.

It can be divided in two parts, 612 and 29260, that multiplied together give a triangular number (17907120 = T₅₉₈₄).

The spelling of 61229260 in words is "sixty-one million, two hundred twenty-nine thousand, two hundred sixty".