61974020 has 24 divisors (see below), whose sum is σ = 130431168. Its totient is φ = 24735200.

The previous prime is 61973981. The next prime is 61974043. The reversal of 61974020 is 2047916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6665 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (5434632).

Almost surely, 2^61974020 is an apocalyptic number.

It is an amenable number.

61974020 is an abundant number, since it is smaller than the sum of its proper divisors (68457148).

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

61974020 is a wasteful number, since it uses less digits than its factorization.

61974020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811 (or 6809 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 61974020 is about 7872.3579695032. The cubic root of 61974020 is about 395.7338704359.

The spelling of 61974020 in words is "sixty-one million, nine hundred seventy-four thousand, twenty".