61332940 has 24 divisors (see below), whose sum is σ = 136376352. Its totient is φ = 23089920.

The previous prime is 61332917. The next prime is 61332959. The reversal of 61332940 is 4923316.

It is a junction number, because it is equal to n+sod(n) for n = 61332899 and 61332908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89856 + ... + 90535.

It is an arithmetic number, because the mean of its divisors is an integer number (5682348).

Almost surely, 2^61332940 is an apocalyptic number.

It is an amenable number.

61332940 is an abundant number, since it is smaller than the sum of its proper divisors (75043412).

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

61332940 is a wasteful number, since it uses less digits than its factorization.

61332940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180417 (or 180415 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 61332940 is about 7831.5349708726. The cubic root of 61332940 is about 394.3646036173.

The spelling of 61332940 in words is "sixty-one million, three hundred thirty-two thousand, nine hundred forty".