1292678258 has 16 divisors (see below), whose sum is σ = 1990517760. Its totient is φ = 629239200.

The previous prime is 1292678251. The next prime is 1292678291. The reversal of 1292678258 is 8528762921.

It is not an unprimeable number, because it can be changed into a prime (1292678251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22823 + ... + 55733.

It is an arithmetic number, because the mean of its divisors is an integer number (124407360).

Almost surely, 2^1292678258 is an apocalyptic number.

1292678258 is a deficient number, since it is larger than the sum of its proper divisors (697839502).

1292678258 is a wasteful number, since it uses less digits than its factorization.

1292678258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33433.

The product of its digits is 967680, while the sum is 50.

The square root of 1292678258 is about 35953.8350944652. The cubic root of 1292678258 is about 1089.3400763698.

The spelling of 1292678258 in words is "one billion, two hundred ninety-two million, six hundred seventy-eight thousand, two hundred fifty-eight".