1253790278 has 32 divisors (see below), whose sum is σ = 2162039040. Its totient is φ = 540479520.

The previous prime is 1253790271. The next prime is 1253790287. The reversal of 1253790278 is 8720973521.

It is a super-2 number, since 2×1253790278² = 3143980122414634568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253790271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17201 + ... + 52947.

It is an arithmetic number, because the mean of its divisors is an integer number (67563720).

Almost surely, 2^1253790278 is an apocalyptic number.

1253790278 is a deficient number, since it is larger than the sum of its proper divisors (908248762).

1253790278 is a wasteful number, since it uses less digits than its factorization.

1253790278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35852.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1253790278 is about 35408.9011125734. The cubic root of 1253790278 is about 1078.3050339051.

The spelling of 1253790278 in words is "one billion, two hundred fifty-three million, seven hundred ninety thousand, two hundred seventy-eight".