61574642 has 8 divisors (see below), whose sum is σ = 93927600. Its totient is φ = 30265444.

The previous prime is 61574621. The next prime is 61574671. The reversal of 61574642 is 24647516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260792 + ... + 261027.

It is an arithmetic number, because the mean of its divisors is an integer number (11740950).

Almost surely, 2^61574642 is an apocalyptic number.

61574642 is a deficient number, since it is larger than the sum of its proper divisors (32352958).

61574642 is a wasteful number, since it uses less digits than its factorization.

61574642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521880.

The product of its digits is 40320, while the sum is 35.

The square root of 61574642 is about 7846.9511276674. The cubic root of 61574642 is about 394.8819644112.

It can be divided in two parts, 615 and 74642, that added together give a palindrome (75257).

The spelling of 61574642 in words is "sixty-one million, five hundred seventy-four thousand, six hundred forty-two".