61435020 has 48 divisors (see below), whose sum is σ = 172999008. Its totient is φ = 16289280.

The previous prime is 61434979. The next prime is 61435043. The reversal of 61435020 is 2053416.

It is a happy number.

61435020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8032 + ... + 13688.

It is an arithmetic number, because the mean of its divisors is an integer number (3604146).

Almost surely, 2^61435020 is an apocalyptic number.

61435020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61435020 is an abundant number, since it is smaller than the sum of its proper divisors (111563988).

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

61435020 is a wasteful number, since it uses less digits than its factorization.

61435020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850 (or 5848 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 61435020 is about 7838.0495022678. The cubic root of 61435020 is about 394.5832703755.

Adding to 61435020 its reverse (2053416), we get a palindrome (63488436).

The spelling of 61435020 in words is "sixty-one million, four hundred thirty-five thousand, twenty".