61502428 has 12 divisors (see below), whose sum is σ = 115908520. Its totient is φ = 28385712.

The previous prime is 61502393. The next prime is 61502429. The reversal of 61502428 is 82420516.

It is a junction number, because it is equal to n+sod(n) for n = 61502396 and 61502405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61502429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591318 + ... + 591421.

Almost surely, 2^61502428 is an apocalyptic number.

It is an amenable number.

61502428 is a deficient number, since it is larger than the sum of its proper divisors (54406092).

61502428 is a wasteful number, since it uses less digits than its factorization.

61502428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182756 (or 1182754 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 61502428 is about 7842.3483727771. The cubic root of 61502428 is about 394.7275330832.

The spelling of 61502428 in words is "sixty-one million, five hundred two thousand, four hundred twenty-eight".