1154427406 has 16 divisors (see below), whose sum is σ = 1935139248. Its totient is φ = 511940800.

The previous prime is 1154427401. The next prime is 1154427409. The reversal of 1154427406 is 6047244511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154427401) 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, 639025 + ... + 640828.

It is an arithmetic number, because the mean of its divisors is an integer number (120946203).

Almost surely, 2^1154427406 is an apocalyptic number.

1154427406 is a deficient number, since it is larger than the sum of its proper divisors (780711842).

1154427406 is a wasteful number, since it uses less digits than its factorization.

1154427406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279907.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1154427406 is about 33976.8657471521. The cubic root of 1154427406 is about 1049.0323378202.

The spelling of 1154427406 in words is "one billion, one hundred fifty-four million, four hundred twenty-seven thousand, four hundred six".