118280407 has 16 divisors (see below), whose sum is σ = 147750912. Its totient is φ = 92338560.

The previous prime is 118280381. The next prime is 118280411. The reversal of 118280407 is 704082811.

It is not a de Polignac number, because 118280407 - 2²³ = 109891799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118280497) 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, 12343 + ... + 19720.

It is an arithmetic number, because the mean of its divisors is an integer number (9234432).

Almost surely, 2^118280407 is an apocalyptic number.

118280407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

118280407 is a deficient number, since it is larger than the sum of its proper divisors (29470505).

118280407 is a wasteful number, since it uses less digits than its factorization.

118280407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32118.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 118280407 is about 10875.6796109485. The cubic root of 118280407 is about 490.8750254004.

The spelling of 118280407 in words is "one hundred eighteen million, two hundred eighty thousand, four hundred seven".