1974690064 has 40 divisors (see below), whose sum is σ = 4030496000. Its totient is φ = 934644096.

The previous prime is 1974690043. The next prime is 1974690089. The reversal of 1974690064 is 4600964791.

It is a junction number, because it is equal to n+sod(n) for n = 1974689996 and 1974690023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724897 + ... + 727615.

It is an arithmetic number, because the mean of its divisors is an integer number (100762400).

Almost surely, 2^1974690064 is an apocalyptic number.

It is an amenable number.

1974690064 is an abundant number, since it is smaller than the sum of its proper divisors (2055805936).

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

1974690064 is a wasteful number, since it uses less digits than its factorization.

1974690064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135 (or 5129 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1974690064 is about 44437.4848973251. The cubic root of 1974690064 is about 1254.5837180643.

The spelling of 1974690064 in words is "one billion, nine hundred seventy-four million, six hundred ninety thousand, sixty-four".