1040128942 has 16 divisors (see below), whose sum is σ = 1580260752. Its totient is φ = 513385600.

The previous prime is 1040128937. The next prime is 1040128949. The reversal of 1040128942 is 2498210401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040128949) 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, 369942 + ... + 372742.

It is an arithmetic number, because the mean of its divisors is an integer number (98766297).

Almost surely, 2^1040128942 is an apocalyptic number.

1040128942 is a deficient number, since it is larger than the sum of its proper divisors (540131810).

1040128942 is a wasteful number, since it uses less digits than its factorization.

1040128942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1040128942 is about 32251.0300920761. The cubic root of 1040128942 is about 1013.2012735001.

The spelling of 1040128942 in words is "one billion, forty million, one hundred twenty-eight thousand, nine hundred forty-two".