1256045410 has 64 divisors (see below), whose sum is σ = 2422006272. Its totient is φ = 467923456.

The previous prime is 1256045377. The next prime is 1256045447. The reversal of 1256045410 is 145406521.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2035422 + ... + 2036038.

It is an arithmetic number, because the mean of its divisors is an integer number (37843848).

Almost surely, 2^1256045410 is an apocalyptic number.

1256045410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1256045410 is a deficient number, since it is larger than the sum of its proper divisors (1165960862).

1256045410 is a wasteful number, since it uses less digits than its factorization.

1256045410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1256045410 is about 35440.7309461868. The cubic root of 1256045410 is about 1078.9511450734.

It can be divided in two parts, 12560 and 45410, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 1256045410 in words is "one billion, two hundred fifty-six million, forty-five thousand, four hundred ten".