61263420 has 48 divisors (see below), whose sum is σ = 172132128. Its totient is φ = 16280320.

The previous prime is 61263373. The next prime is 61263431. The reversal of 61263420 is 2436216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17410 + ... + 20630.

It is an arithmetic number, because the mean of its divisors is an integer number (3586086).

Almost surely, 2^61263420 is an apocalyptic number.

61263420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61263420 is an abundant number, since it is smaller than the sum of its proper divisors (110868708).

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

61263420 is a wasteful number, since it uses less digits than its factorization.

61263420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 61263420 is about 7827.0952466416. The cubic root of 61263420 is about 394.2155450940.

Adding to 61263420 its reverse (2436216), we get a palindrome (63699636).

The spelling of 61263420 in words is "sixty-one million, two hundred sixty-three thousand, four hundred twenty".