38561420 has 12 divisors (see below), whose sum is σ = 80979024. Its totient is φ = 15424560.

The previous prime is 38561407. The next prime is 38561459. The reversal of 38561420 is 2416583.

It is a super-2 number, since 2×38561420² = 2973966224832800, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 964016 + ... + 964055.

It is an arithmetic number, because the mean of its divisors is an integer number (6748252).

Almost surely, 2^38561420 is an apocalyptic number.

It is an amenable number.

38561420 is an abundant number, since it is smaller than the sum of its proper divisors (42417604).

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

38561420 is a wasteful number, since it uses less digits than its factorization.

38561420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928080 (or 1928078 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 38561420 is about 6209.7842152526. The cubic root of 38561420 is about 337.8451375582.

The spelling of 38561420 in words is "thirty-eight million, five hundred sixty-one thousand, four hundred twenty".