61270428 has 24 divisors (see below), whose sum is σ = 145100032. Its totient is φ = 20118384.

The previous prime is 61270427. The next prime is 61270453. The reversal of 61270428 is 82407216.

It is a junction number, because it is equal to n+sod(n) for n = 61270395 and 61270404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61270423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37300 + ... + 38907.

Almost surely, 2^61270428 is an apocalyptic number.

It is an amenable number.

61270428 is an abundant number, since it is smaller than the sum of its proper divisors (83829604).

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

61270428 is a wasteful number, since it uses less digits than its factorization.

61270428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76281 (or 76279 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 61270428 is about 7827.5429094959. The cubic root of 61270428 is about 394.2305761256.

The spelling of 61270428 in words is "sixty-one million, two hundred seventy thousand, four hundred twenty-eight".