61375428 has 48 divisors (see below), whose sum is σ = 159544000. Its totient is φ = 20404224.

The previous prime is 61375421. The next prime is 61375463. The reversal of 61375428 is 82457316.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 61375392 and 61375401.

It is not an unprimeable number, because it can be changed into a prime (61375421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79428 + ... + 80196.

Almost surely, 2^61375428 is an apocalyptic number.

It is an amenable number.

61375428 is an abundant number, since it is smaller than the sum of its proper divisors (98168572).

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

61375428 is a wasteful number, since it uses less digits than its factorization.

61375428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521 (or 1513 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 61375428 is about 7834.2471240062. The cubic root of 61375428 is about 394.4556471122.

The spelling of 61375428 in words is "sixty-one million, three hundred seventy-five thousand, four hundred twenty-eight".