1254744780 has 96 divisors (see below), whose sum is σ = 3569227200. Its totient is φ = 329315328.

The previous prime is 1254744779. The next prime is 1254744787. The reversal of 1254744780 is 874474521.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1254744787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130866 + ... + 1131974.

It is an arithmetic number, because the mean of its divisors is an integer number (37179450).

Almost surely, 2^1254744780 is an apocalyptic number.

1254744780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1254744780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784613600).

1254744780 is an abundant number, since it is smaller than the sum of its proper divisors (2314482420).

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

1254744780 is a wasteful number, since it uses less digits than its factorization.

1254744780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403 (or 1401 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 42.

The square root of 1254744780 is about 35422.3768259557. The cubic root of 1254744780 is about 1078.5785999218.

The spelling of 1254744780 in words is "one billion, two hundred fifty-four million, seven hundred forty-four thousand, seven hundred eighty".