61413228 has 30 divisors (see below), whose sum is σ = 160547156. Its totient is φ = 20470968.

The previous prime is 61413227. The next prime is 61413239. The reversal of 61413228 is 82231416.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61413223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 94450 + ... + 95097.

Almost surely, 2^61413228 is an apocalyptic number.

It is an amenable number.

61413228 is an abundant number, since it is smaller than the sum of its proper divisors (99133928).

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

61413228 is a wasteful number, since it uses less digits than its factorization.

61413228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189563 (or 189552 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 61413228 is about 7836.6592372005. The cubic root of 61413228 is about 394.5366098252.

The spelling of 61413228 in words is "sixty-one million, four hundred thirteen thousand, two hundred twenty-eight".