1042868397 has 8 divisors (see below), whose sum is σ = 1391450080. Its totient is φ = 694766160.

The previous prime is 1042868389. The next prime is 1042868399. The reversal of 1042868397 is 7938682401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042868397 - 2³ = 1042868389 is a prime.

It is a super-2 number, since 2×1042868397² = 2175148986922699218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042868399) 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, 114754 + ... + 123507.

It is an arithmetic number, because the mean of its divisors is an integer number (173931260).

Almost surely, 2^1042868397 is an apocalyptic number.

It is an amenable number.

1042868397 is a deficient number, since it is larger than the sum of its proper divisors (348581683).

1042868397 is a wasteful number, since it uses less digits than its factorization.

1042868397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239723.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1042868397 is about 32293.4729782970. The cubic root of 1042868397 is about 1014.0900050043.

The spelling of 1042868397 in words is "one billion, forty-two million, eight hundred sixty-eight thousand, three hundred ninety-seven".