61405350 has 24 divisors (see below), whose sum is σ = 152285640. Its totient is φ = 16374720.

The previous prime is 61405349. The next prime is 61405367. The reversal of 61405350 is 5350416.

It is a self number, because there is not a number n which added to its sum of digits gives 61405350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204535 + ... + 204834.

It is an arithmetic number, because the mean of its divisors is an integer number (6345235).

Almost surely, 2^61405350 is an apocalyptic number.

61405350 is an abundant number, since it is smaller than the sum of its proper divisors (90880290).

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

61405350 is a wasteful number, since it uses less digits than its factorization.

61405350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409384 (or 409379 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 61405350 is about 7836.1565834279. The cubic root of 61405350 is about 394.5197389087.

Adding to 61405350 its reverse (5350416), we get a palindrome (66755766).

The spelling of 61405350 in words is "sixty-one million, four hundred five thousand, three hundred fifty".