1254743028 has 96 divisors (see below), whose sum is σ = 4055761920. Its totient is φ = 325905120.

The previous prime is 1254743023. The next prime is 1254743047. The reversal of 1254743028 is 8203474521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1254742983 and 1254743001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254743023) 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, 67126 + ... + 83757.

It is an arithmetic number, because the mean of its divisors is an integer number (42247520).

Almost surely, 2^1254743028 is an apocalyptic number.

1254743028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1254743028 is an abundant number, since it is smaller than the sum of its proper divisors (2801018892).

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

1254743028 is a wasteful number, since it uses less digits than its factorization.

1254743028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150914 (or 150906 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1254743028 is about 35422.3520958166. The cubic root of 1254743028 is about 1078.5780979152.

The spelling of 1254743028 in words is "one billion, two hundred fifty-four million, seven hundred forty-three thousand, twenty-eight".