1974240646 has 16 divisors (see below), whose sum is σ = 3385234944. Its totient is φ = 845897544.

The previous prime is 1974240643. The next prime is 1974240647. The reversal of 1974240646 is 6460424791.

It is a super-2 number, since 2×1974240646² = 7795252256636994632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974240643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52221 + ... + 81703.

It is an arithmetic number, because the mean of its divisors is an integer number (211577184).

Almost surely, 2^1974240646 is an apocalyptic number.

1974240646 is a deficient number, since it is larger than the sum of its proper divisors (1410994298).

1974240646 is a wasteful number, since it uses less digits than its factorization.

1974240646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34275.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1974240646 is about 44432.4278652427. The cubic root of 1974240646 is about 1254.4885343027.

The spelling of 1974240646 in words is "one billion, nine hundred seventy-four million, two hundred forty thousand, six hundred forty-six".