1146740407 has 4 divisors (see below), whose sum is σ = 1146820840. Its totient is φ = 1146659976.

The previous prime is 1146740377. The next prime is 1146740411. The reversal of 1146740407 is 7040476411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7040476411 = 83 ⋅84825017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146740407 is a prime.

It is a super-2 number, since 2×1146740407² = 2630027122093051298, 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 (1146740467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12432 + ... + 49477.

It is an arithmetic number, because the mean of its divisors is an integer number (286705210).

Almost surely, 2^1146740407 is an apocalyptic number.

1146740407 is a deficient number, since it is larger than the sum of its proper divisors (80433).

1146740407 is an equidigital number, since it uses as much as digits as its factorization.

1146740407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80432.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1146740407 is about 33863.5557347423. Note that the first 3 decimals coincide. The cubic root of 1146740407 is about 1046.6987493490.

The spelling of 1146740407 in words is "one billion, one hundred forty-six million, seven hundred forty thousand, four hundred seven".