1204674640 has 40 divisors (see below), whose sum is σ = 3016322568. Its totient is φ = 444802560.

The previous prime is 1204674637. The next prime is 1204674661. The reversal of 1204674640 is 464764021.

It can be written as a sum of positive squares in 4 ways, for example, as 21864976 + 1182809664 = 4676^2 + 34392^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1204674596 and 1204674605.

It is a congruent number.

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, 578131 + ... + 580210.

Almost surely, 2^1204674640 is an apocalyptic number.

1204674640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204674640 is an abundant number, since it is smaller than the sum of its proper divisors (1811647928).

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

1204674640 is a wasteful number, since it uses less digits than its factorization.

1204674640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158367 (or 1158361 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 1204674640 is about 34708.4231851578. The cubic root of 1204674640 is about 1064.0366552280.

The spelling of 1204674640 in words is "one billion, two hundred four million, six hundred seventy-four thousand, six hundred forty".