61902242 has 4 divisors (see below), whose sum is σ = 92853366. Its totient is φ = 30951120.

The previous prime is 61902233. The next prime is 61902277. The reversal of 61902242 is 24220916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59274601 + 2627641 = 7699^2 + 1621^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15475559 + ... + 15475562.

Almost surely, 2^61902242 is an apocalyptic number.

61902242 is a deficient number, since it is larger than the sum of its proper divisors (30951124).

61902242 is a wasteful number, since it uses less digits than its factorization.

61902242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30951123.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 61902242 is about 7867.7977859119. The cubic root of 61902242 is about 395.5810324188.

The spelling of 61902242 in words is "sixty-one million, nine hundred two thousand, two hundred forty-two".