1040798397 has 16 divisors (see below), whose sum is σ = 1462095360. Its totient is φ = 656749872.

The previous prime is 1040798389. The next prime is 1040798399. The reversal of 1040798397 is 7938970401.

It is not a de Polignac number, because 1040798397 - 2³ = 1040798389 is a prime.

It is a super-2 number, since 2×1040798397² = 2166522606395539218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040798399) 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, 59968 + ... + 75350.

It is an arithmetic number, because the mean of its divisors is an integer number (91380960).

Almost surely, 2^1040798397 is an apocalyptic number.

It is an amenable number.

1040798397 is a deficient number, since it is larger than the sum of its proper divisors (421296963).

1040798397 is a wasteful number, since it uses less digits than its factorization.

1040798397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16592.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1040798397 is about 32261.4072383707. The cubic root of 1040798397 is about 1013.4186014231.

The spelling of 1040798397 in words is "one billion, forty million, seven hundred ninety-eight thousand, three hundred ninety-seven".